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Baronies
11 mapped.
Electoral Divisions
497 mapped.
- Abbey (aka Abbey DED) , Co. Clare
- Abbey East (aka Abbey East DED) , Co. Galway
- Abbeygormacan (aka Abbeygormacan DED) , Co. Galway
- Abbeyville (aka Abbeyville DED) , Co. Galway
- Abbey West (aka Abbey West DED) , Co. Galway
- Addergoole (aka Addergoole DED) , Co. Galway
- Aghanlish (aka Aghanlish DED) , Co. Leitrim
- Ahascragh (aka Ahascragh DED) , Co. Galway
- Aille (aka Aille DED) , Co. Galway
- An Clochán (An Clochán) (aka Cloghan DED) , Co. Donegal
- An Crompán (Crompán) (aka Crumpaun) , Co. Galway
- Annagary (Anagaire) (aka Annagary DED)
- Annagh (aka Annagh DED) , Co. Galway
- Annaghdown (Eanach Dhúin) , Co. Galway
- An Spidéal (An Spidéal) (aka Spiddle ED) , Co. Galway
- Árainn (Árainn) , Co. Galway
- Aran (Árainn Mhór) (aka Aran DED) , Co. Donegal
- Ardamullivan (aka Ardamullivan DED) , Co. Galway
- Ardara (Ard an Rátha) (aka Ardara DED) , Co. Donegal
- Ardmalin (aka Ardmalin DED) , Co. Donegal
- Ardrahan (aka Ardrahan DED) , Co. Galway
- Ards (An Ardaidh) (aka Ards DED) , Co. Donegal
- Astee (aka Astee DED) , Co. Kerry
- Athenry (aka Athenry DED) , Co. Galway
- Athleague East (aka Athleague East DED) , Co. Roscommon
- Athleague West (aka Athleague West DED) , Co. Roscommon
- Athlone East Rural (aka Athlone East Rural DED) , Co. Westmeath
- Athlone East Urban (aka Athlone East Urban DED) , Co. Westmeath
- Athlone West Rural (aka Athlone West Rural DED) , Co. Roscommon
- Aughrim (aka Aughrim DED) , Co. Galway
- Aughrim (aka Aughrim DED) , Co. Galway
- Baile na Finne (Baile na Finne) (aka Fintown DED) , Co. Donegal
- Ballinasloe Rural (Béal Átha na Sluaighe (Tuath)) (aka Ballinasloe Rural DED) , Co. Galway
- Ballinasloe Urban (Béal Átha na Sluaighe (Baile)) (aka Ballinasloe Urban DED) , Co. Galway
- Ballinastack (aka Ballinastack DED) , Co. Galway
- Ballinchalla (Baile an Chalaidh) (aka Ballinchalla DED) , Co. Mayo
- Ballinderry (aka Ballinderry DED) , Co. Galway
- Ballindine (aka Ballindine DED) , Co. Mayo
- Ballinduff (An Baile Dubh) (aka Ballinduff DED) , Co. Kerry
- Ballinduff, Co. Galway
- Ballinlough (aka Ballinlough DED) , Co. Roscommon
- Ballinrobe (aka Ballinrobe DED) , Co. Mayo
- Ballintemple (Baile an Teampaill) (aka Ballintemple DED) , Co. Galway
- Ballintober (aka Ballintober DED) , Co. Roscommon
- Ballintra (aka Ballintra DED) , Co. Donegal
- Ballintra (aka Ballintra DED) , Co. Donegal
- Ballinvoher (Baile an Bhóthair) (aka Ballinvoher DED) , Co. Kerry
- Ballyarr (Baile Áir) (aka Ballyarr DED) , Co. Donegal
- Ballycahalan (aka Ballycahalan DED) , Co. Galway
- Ballyconnell (aka Ballyconnell DED) , Co. Cavan
- Ballydangan (aka Ballydangan DED) , Co. Roscommon
- Ballyglass (aka Ballyglass DED) , Co. Galway
- Ballyliffin (aka Ballyliffin DED) , Co. Donegal
- Ballymacool (aka Ballymacool DED) , Co. Donegal
- Ballymacward (aka Ballymacward DED) , Co. Galway
- Ballymagauran (aka Ballymagauran DED) , Co. Cavan
- Ballymoe (aka Ballymoe DED) , Co. Galway
- Ballynacourty (Baile na Cúirte) (aka Ballynacourty DED) , Co. Kerry
- Ballynacourty (Baile Na Cúirte) (aka Ballynacourty DED) , Co. Galway
- Ballynagar (aka Ballynagar DED) , Co. Galway
- Ballynakill (Baile na Cille) (aka Ballynakill DED) , Co. Galway
- Ballynakill (aka Ballynakill DED) , Co. Galway
- Ballynakill (aka Ballynakill DED) , Co. Galway
- Ballynamona (aka Ballynamona DED) , Co. Roscommon
- Ballynapark (aka Ballynapark DED) , Co. Galway
- Ballyovey (aka Ballyovey DED) , Co. Mayo
- Ballyshannon Rural (aka Ballyshannon Rural DED) , Co. Donegal
- Ballyshannon Urban (aka Ballyshannon Urban DED) , Co. Donegal
- Bawnboy (aka Bawnboy DED) , Co. Cavan
- Beagh (aka Beagh DED) , Co. Galway
- Beaghmore (aka Beaghmore DED) , Co. Galway
- Beal (aka Beal DED) , Co. Kerry
- Bearna (Bearna) (aka Barna DED) , Co. Galway
- Belclare (aka Belclare DED) , Co. Galway
- Belleville (aka Belleville DED) , Co. Galway
- Benbrack (aka Benbrack DED) , Co. Cavan
- Bencorr (Binn an Choire) (aka Bencorr DED) , Co. Galway
- Binbane (An Bhinn Bhán) (aka Binbane DED) , Co. Donegal
- Birr Rural (aka Birr Rural DED) ('Parsonstown Rural' in 1901 Census, 'Parsonstown Rural' in 1911 Census), Co. Offaly
- Birr Urban (aka Birr Urban DED) ('Parsonstown Urban' in 1901 Census, 'Parsonstown Urban' in 1911 Census), Co. Offaly
- Bonnyglen (aka Bonnyglen DED) , Co. Donegal
- Boyounagh (aka Boyounagh DED) , Co. Galway
- Bracklagh (aka Bracklagh DED) , Co. Galway
- Brandon (Cé Bhréanainn) (aka Brandon DED) , Co. Kerry
- Bullaun (aka Bullaun DED) , Co. Galway
- Buncrana Rural (aka Buncrana Rural DED) , Co. Donegal
- Buncrana Urban (aka Buncrana Urban DED) , Co. Donegal
- Bunowen (Bun Abhann) (aka Bunowen DED) , Co. Galway
- Cahermore (aka Cahermore DED) , Co. Galway
- Caltra (aka Caltra DED) , Co. Galway
- Caltragh (aka Caltragh DED) , Co. Roscommon
- Cams (aka Cams DED) , Co. Roscommon
- Camus (Camus) (aka Camus DED) , Co. Galway
- Cappaghduff (An Cheapaigh Dhuibh or Ceapach Dubh) , Co. Mayo
- Cappalusk (aka Cappalusk DED) , Co. Galway
- Cappard (aka Cappard DED) , Co. Galway
- Carn (aka Carn DED) , Co. Cavan
- Carnagh (aka Carnagh DED) , Co. Roscommon
- Carndonagh (aka Carndonagh DED) , Co. Donegal
- Carnmore (An Carn Mór) (aka Carnmore DED) , Co. Galway
- Carrickart (Carraig Airt) (aka Carrickart DED) , Co. Donegal
- Carrickboy (aka Carrickboy DED) , Co. Donegal
- Carrig (aka Carrig DED) , Co. Kerry
- Carrowbrowne (Ceathrú Bhrún) (aka Carrowbrowne DED) , Co. Galway
- Carrowduff (aka Carrowduff DED) , Co. Roscommon
- Carrowkeel (An Cheathrú Chaol) (aka Carrowkeel DED) , Co. Donegal
- Carrownagur (aka Carrownagur DED) , Co. Galway
- Carrowreagh (aka Carrowreagh DED) , Co. Roscommon
- Carrowrevagh (aka Carrowrevagh DED) , Co. Galway
- Carthage (aka Carthage DED) , Co. Donegal
- Castleblakeney (aka Castleblakeney DED) , Co. Galway
- Castleboy (aka Castleboy DED) , Co. Galway
- Castleffrench (aka Castleffrench DED) , Co. Galway
- Castlefinn (aka Castlefinn DED) , Co. Donegal
- Castleforward (aka Castleforward DED) , Co. Donegal
- Castlegregory (Caisleán Ghriaire) (aka Castlegregory DED) , Co. Kerry
- Castleplunket (aka Castleplunket DED) , Co. Roscommon
- Castlereagh (aka Castlereagh DED) , Co. Roscommon
- Castlesampson (aka Castlesampson DED) , Co. Roscommon
- Castletaylor (aka Castletaylor DED) , Co. Galway
- Castleteheen (aka Castleteheen DED) , Co. Roscommon
- Castlewray (aka Castlewray DED) , Co. Donegal
- Cavangarden (aka Cavangarden DED) , Co. Donegal
- Church Hill (Mín an Lábáin) (aka Church Hill DED) , Co. Donegal
- Cill Ainnín (Cill Ainnín) (aka Killannin District Electoral Division) , Co. Galway
- Cill Chuimín (Cill Chuimín) (aka Kilcummin (Galway) ED) , Co. Galway
- Claregalway (Baile Chláir) (aka Claregalway DED) , Co. Galway
- Claretuam (aka Claretuam DED) , Co. Galway
- Clarinbridge (Droichead An Chláirín) (aka Clarinbridge DED) , Co. Galway
- Cleggan (An Cloigeann) (aka Cleggan DED) , Co. Galway
- Clifden (An Clochán) (aka Clifden DED) , Co. Galway
- Cliff (aka Cliff DED) , Co. Donegal
- Cloghane (An Clochán) (aka Cloghane DED) , Co. Kerry
- Cloghard (aka Cloghard DED) , Co. Donegal
- Clogher (aka Clogher DED) , Co. Donegal
- Clonbern (aka Clonbern DED) , Co. Galway
- Clonbrock (aka Clonbrock DED) , Co. Galway
- Clonfert (aka Clonfert DED) , Co. Galway
- Clonleigh North (aka Clonleigh North DED) , Co. Donegal
- Clonleigh South (aka Clonleigh South DED) , Co. Donegal
- Clonmore (Cluain Mór) (aka Clonmore DED) , Co. Offaly
- Clontuskert (aka Clontuskert DED) , Co. Galway
- Cloonbur (An Fhairche) (aka Cloonbur DED) , Co. Galway
- Cloonburren (aka Cloonburren DED) , Co. Roscommon
- Cloonfinlough (aka Cloonfinlough DED) , Co. Roscommon
- Cloonkeen (aka Cloonkeen DED) , Co. Galway
- Cloonkeen (aka Cloonkeen DED) , Co. Galway
- Cloonkeen (aka Cloonkeen DED) , Co. Galway
- Cloonown (aka Cloonown DED) , Co. Roscommon
- Cloontuskert (aka Cloontuskert DED) , Co. Roscommon
- Cloonygormican (aka Cloonygormican DED) , Co. Roscommon
- Colmanstown (aka Colmanstown DED) , Co. Galway
- Cong (Conga) (aka Cong DED) , Co. Galway
- Cong (Conga) (aka Cong DED) , Co. Mayo
- Convoy (aka Convoy DED) , Co. Donegal
- Cooloo (aka Cooloo DED) , Co. Galway
- Coolougher (aka Coolougher DED) , Co. Roscommon
- Coonard (aka Coonard DED) , Co. Mayo
- Coos (aka Coos DED) , Co. Galway
- Corkermore (An Charcair Mhór) (aka Corkermore DED) , Co. Donegal
- Corravaddy (aka Corravaddy DED) , Co. Donegal
- Course (aka Course DED) , Co. Mayo
- Cranford (Creamhghort) (aka Cranford DED) , Co. Donegal
- Crannagh (aka Crannagh DED) , Co. Roscommon
- Craughwell (aka Craughwell DED) , Co. Galway
- Creagh (aka Creagh DED) , Co. Roscommon
- Creenasmear (Críoch na Sméar) (aka Creenasmear DED) , Co. Donegal
- Creeslough (An Craoslach) (aka Creeslough DED) , Co. Donegal
- Creggs (aka Creggs DED) , Co. Galway
- Crossboyne (aka Crossboyne DED) , Co. Mayo
- Cross Roads (Na Croisbhealaí) (aka Cross Roads DED) , Co. Donegal
- Crovehy (Cró Bheithe) (aka Crovehy DED) , Co. Donegal
- Crowkeeragh (Cró Chaorach) (aka Crowkeeragh DED) , Co. Donegal
- Crownarad (Cruach na Rad) (aka Crownarad DED) , Co. Donegal
- Culdaff (aka Culdaff DED)
- Culliagh (Coilleach) (aka Culliagh DED) , Co. Roscommon
- Cummer (aka Cummer DED) , Co. Galway
- Cur (An Chorr) (aka Cur DED) , Co. Galway
- Curraghmore (aka Curraghmore DED) , Co. Galway
- Cushkillary (Cois Caoláire) (aka Cushkillary DED) , Co. Galway
- Dalgan (aka Dalgan DED) , Co. Mayo
- Dawros (aka Dawros DED) , Co. Donegal
- Deelis (Duílios) (aka Deelis DED) , Co. Kerry
- Deerpark (aka Deerpark DED) , Co. Galway
- Derreen (aka Derreen DED) , Co. Galway
- Derrew (aka Derrew DED) , Co. Galway
- Derrycunlagh (Doire Chunlaigh) (aka Derrycunlagh DED) , Co. Galway
- Derryglassaun (aka Derryglassaun DED) , Co. Galway
- Derrylahan (aka Derrylahan DED) , Co. Cavan
- Derrylaur (aka Derrylaur DED) , Co. Galway
- Derrylea (Doire Liath) (aka Derrylea DED) , Co. Galway
- Derrynananta (aka Derrynananta DED) , Co. Cavan
- Desertegny (aka Desertegny DED) , Co. Donegal
- Dingle (An Daingean) (aka Dingle DED) , Co. Kerry
- Doe Castle (Caisleán na dTuath) (aka Doe Castle DED) , Co. Donegal
- Donaghpatrick (aka Donaghpatrick DED) , Co. Galway
- Donegal (Dún na nGall) (aka Donegal DED) , Co. Donegal
- Doocharry (An Dúchoraidh) (aka Doocharry DED) , Co. Donegal
- Dooish (An Dubhais) (aka Dooish DED) , Co. Donegal
- Doonbally (aka Doonbally DED) , Co. Galway
- Doonloughan (Dún Locháin) (aka Doonloughan DED) , Co. Galway
- Doorus (aka Doorus DED) , Co. Galway
- Dowra (aka Dowra Electoral Division) , Co. Cavan
- Drumacoo (aka Drumacoo DED) , Co. Galway
- Drumdaff (aka Drumdaff DED) , Co. Roscommon
- Drumkeary (aka Drumkeary DED) , Co. Galway
- Drumlosh (aka Drumlosh DED) , Co. Roscommon
- Drummin (aka Drummin DED) , Co. Galway
- Drumreilly East (aka Drumreilly East DED) , Co. Leitrim
- Dunaff (aka Dunaff DED) , Co. Donegal
- Dunamon (aka Dunamon DED) , Co. Roscommon
- Dunfanaghy (Dún Fionnachaidh) (aka Dunfanaghy DED) , Co. Donegal
- Dunglow (An Clochán Liath) (aka Dungloe Electoral Division) , Co. Donegal
- Dunkineely (Dún Cionnaola) (aka Dunkineely DED) , Co. Donegal
- Dunlewy (Dún Lúiche) (aka Dunlewy DED) , Co. Donegal
- Dunmakeever (aka Dunmakeever Electoral Division) , Co. Cavan
- Dunmore North, Co. Galway
- Dunmore South (aka Dunmore South DED) , Co. Galway
- Dunurlin (Dún Urlann) (aka Dunurlin DED) , Co. Kerry
- Durrow (Darú) (aka Durrow DED) , Co. Offaly
- Dysart (aka Dysart DED) , Co. Roscommon
- Eanach Dhúin (Eanach Dhúin) , Co. Galway
- Eanymore (An Eidhnigh Mhór) (aka Eanymore DED) , Co. Donegal
- Edenacarnan (aka Edenacarnan DED) , Co. Donegal
- Edenderry Rural (Éadan Doire (Tuath)) (aka Edenderry Rural DED) , Co. Offaly
- Edenderry Urban (Éadan Doire (Uirbeach)) (aka Edenderry Urban DED) , Co. Offaly
- Errislannan (aka Errislannan DED) , Co. Galway
- Eyrecourt (aka Eyrecourt DED) , Co. Galway
- Fanad North (Fánaid Thuaidh) (aka Fanad North DED) , Co. Donegal
- Fanad West (Fánaid Thiar) (aka Fanad West DED) , Co. Donegal
- Feddyglass (An Fhaiche Ghlas) (aka Feddyglass DED) , Co. Donegal
- Figart (aka Figart DED) , Co. Donegal
- Foxhall (aka Foxhall DED) , Co. Galway
- Fuerty (aka Fuerty DED) , Co. Roscommon
- Galway Rural (Gaillimh) (aka Galway Rural (Part)) , Co. Galway
- Garrymore (aka Garrymore DED) , Co. Mayo
- Gartan (Gartán) (aka Gartan DED) , Co. Donegal
- Glen (An Gleann) (aka Glen DED) , Co. Donegal
- Glenalla (Gleann Eala) (aka Glenalla DED) , Co. Donegal
- Glenco (aka Glenco DED) , Co. Mayo
- Gleneely (aka Gleneely DED) , Co. Donegal
- Gleneely (aka Gleneely DED) , Co. Donegal
- Glengesh (Gleann Gheis) (aka Glengesh DED) , Co. Donegal
- Glenhest (aka Glenhest DED) , Co. Mayo
- Glenleheen (Gleann Léithín) (aka Glenleheen DED) , Co. Donegal
- Glennagannon (aka Glennagannon DED) , Co. Donegal
- Glennamaddy (aka Glennamaddy DED) , Co. Galway
- Glenties (Na Gleannta) (aka Glenties DED) , Co. Donegal
- Glentogher (aka Glentogher DED) , Co. Donegal
- Glin (Na Gleannta) (aka Glin DED) , Co. Kerry
- Gort (aka Gort DED) , Co. Galway
- Gortahork (Gort an Choirce) (aka Gortahork DED) , Co. Donegal
- Gortnavern (aka Gortnavern DED) , Co. Donegal
- Gorumna (Garmna or Toghroinn Gharmna) , Co. Galway
- Graffy (An Ghrafaidh) (aka Graffy DED) , Co. Donegal
- Graigabbey (aka Graigabbey DED) , Co. Galway
- Grange (aka Grange DED) , Co. Galway
- Greencastle (aka Greencastle DED) , Co. Donegal
- Greenfort (Grianford) (aka Greenfort DED) , Co. Donegal
- Greethill (aka Greethill DED) , Co. Galway
- Grousehall (aka Grousehall DED) , Co. Donegal
- Haugh (Haugh) (aka Haugh DED) , Co. Donegal
- Headford (Áth Cinn) (aka Headford DED) , Co. Galway
- Hillsbrook (aka Hillsbrook DED) , Co. Galway
- Hollymount (aka Hollymount DED) , Co. Mayo
- Houndswood (aka Houndswood DED) , Co. Mayo
- Illies (aka Illies DED) , Co. Donegal
- Illion (An t-Uilinn) (aka Illion DED) , Co. Galway
- Inch (Inse) (aka Inch DED) , Co. Kerry
- Inishbofin (Inis Bó Finne) (aka Inishbofin DED) , Co. Galway
- Inishkeel (aka Inishkeel DED) , Co. Donegal
- Inver (Inbhear) (aka Inver DED) , Co. Donegal
- Island (aka Island DED) , Co. Galway
- Kellysgrove (aka Kellysgrove DED) , Co. Galway
- Kilballyowen (aka Kilballyowen DED) , Co. Clare
- Kilbeacanty (aka Kilbeacanty DED) , Co. Galway
- Kilbennan (aka Kilbennan DED) , Co. Galway
- Kilbride North (aka Kilbride North DED) , Co. Roscommon
- Kilbride South (aka Kilbride South DED) , Co. Roscommon
- Kilcar (aka Kilcar Electoral Division) , Co. Roscommon
- Kilcar (Cill Charthaigh) (aka Kilcar DED) , Co. Donegal
- Kilchreest (Cill Chríost) (aka Kilchreest DED) , Co. Galway
- Kilcommon (aka Kilcommon DED) , Co. Mayo
- Kilconickny (aka Kilconickny DED) , Co. Galway
- Kilconierin (aka Kilconierin DED) , Co. Galway
- Kilconnell (aka Kilconnell DED) , Co. Galway
- Kilcoona (aka Kilcoona DED) , Co. Galway
- Kilcroan (aka Kilcroan DED) , Co. Galway
- Kilcummin (Cill Chuimín) (aka Kilcummin DED) , Co. Galway
- Kilgefin (aka Kilgefin DED) , Co. Roscommon
- Kilgobban (Cill Gobáin) (aka Kilgobban DED) , Co. Kerry
- Killaan (aka Killaan DED) , Co. Galway
- Killallaghtan (aka Killallaghtan DED) , Co. Galway
- Killavackan (aka Killavackan DED) , Co. Roscommon
- Killea (aka Killea DED) , Co. Donegal
- Killeany (Cill Éinne) , Co. Galway
- Killeely (aka Killeely DED) , Co. Galway
- Killeen (aka Killeen DED) , Co. Galway
- Killeenavarra (aka Killeenavarra DED) , Co. Galway
- Killererin (aka Killererin DED) , Co. Galway
- Killeroran (aka Killeroran DED) , Co. Galway
- Killian (aka Killian DED) , Co. Galway
- Killimor (aka Killimor DED) , Co. Galway
- Killimor (aka Killimor DED) , Co. Galway
- Killinny (aka Killinny DED) , Co. Galway
- Killinure (aka Killinure DED) , Co. Westmeath
- Killogilleen (aka Killogilleen DED) , Co. Galway
- Killoran (aka Killoran DED) , Co. Galway
- Killower (aka Killower DED) , Co. Galway
- Killukin (aka Killukin DED) , Co. Roscommon
- Killure (aka Killure DED) , Co. Galway
- Killursa (Cill Fhursa) (aka Killursa District Electoral Division) , Co. Galway
- Killybegs (Na Cealla Beaga) (aka Killybegs DED) , Co. Donegal
- Killygarvan (Cill Gharbháin) (aka Killygarvan DED) , Co. Donegal
- Killygordon (aka Killygordon DED) , Co. Donegal
- Killymasny (Coillidh Masnaí) (aka Killymasny DED) , Co. Donegal
- Kilmacrenan (Cill Mhic Réanáin) (aka Kilmacrenan DED) , Co. Donegal
- Kilmacshane (aka Kilmacshane DED) , Co. Galway
- Kilmaine (aka Kilmaine DED) , Co. Mayo
- Kilmalinoge (aka Kilmalinoge DED) , Co. Galway
- Kilmalkedar (Cill Maoilchéadair) (aka KilmalkedarDED) , Co. Kerry
- Kilmeen (aka Kilmeen DED) , Co. Galway
- Kilmoylan (aka Kilmoylan DED) , Co. Galway
- Kilquain (aka Kilquain DED) , Co. Galway
- Kilquann (Cill Chuáin) (aka Kilquann DED) , Co. Kerry
- Kilreekill (aka Kilreekill DED) , Co. Galway
- Kilshanvy (aka Kilshanvy DED) , Co. Galway
- Kiltartan (aka Kiltartan DED) , Co. Galway
- Kilteevan (aka Kilteevan DED) , Co. Roscommon
- Kilteskill (aka Kilteskill DED) , Co. Galway
- Kilthomas (aka Kilthomas DED) , Co. Galway
- Kiltoom (aka Kiltoom DED) , Co. Roscommon
- Kiltormer, Co. Galway
- Kiltullagh (aka Kiltullagh DED) , Co. Roscommon
- Kiltullagh (aka Kiltullagh DED) , Co. Galway
- Kiltullagh (aka Kiltullagh DED) , Co. Galway
- Kilvine (aka Kilvine DED) , Co. Mayo
- Kinard (Cinn Aird) (aka Kinard DED) , Co. Kerry
- Kinawley (aka Kinawley DED) , Co. Cavan
- Kincraigy (Cionn Chreige) (aka Kincraigy DED) , Co. Donegal
- Kinvarra (aka Kinvarra DED) , Co. Galway
- Knappagh (aka Knappagh DED) , Co. Mayo
- Knock (aka Knock DED) , Co. Donegal
- Knockalla (Cnoc Colbha) (aka Knockalla DED) , Co. Donegal
- Knockboy (An Cnoc Bui) , Co. Galway
- Knockglass (An Cnoc Glas) (aka Knockglass DED) , Co. Kerry
- Kylemore (aka Kylemore DED) , Co. Galway
- Lack (An Leac) (aka Lack DED) , Co. Kerry
- Lackaghbeg (aka Lackaghbeg DED) , Co. Galway
- Lackalea (aka Lackalea DED) , Co. Galway
- Lackan (aka Lackan DED) , Co. Roscommon
- Laghy (aka Laghy DED) , Co. Donegal
- Largymore (An Leargadh Mhór) (aka Largymore DED) , Co. Donegal
- Laurencetown (aka Laurencetown DED) , Co. Galway
- Lecarrow (aka Lecarrow DED) , Co. Roscommon
- Leitrim (aka Leitrim DED) , Co. Galway
- Letterbrick (aka Letterbrick Electoral Division) , Co. Mayo
- Letterbrickaun (Leitir Breacáin) (aka Letterbrickaun DED) , Co. Galway
- Letterfore (Leitir Feoir) (aka Letterfore DED) , Co. Galway
- Letterkenny Rural (aka Letterkenny Rural DED) , Co. Donegal
- Letterkenny Urban (aka Letterkenny Urban DED) , Co. Donegal
- Lettermacaward (Leitir Mhic an Bhaird) (aka Lettermacaward DED) , Co. Donegal
- Lettermore (Leitir Móir or Toghroinn Leitir Móir) , Co. Galway
- Lettermore (Leitir Móir) (aka Lettermore DED) , Co. Donegal
- Levally (aka Levally DED) , Co. Galway
- Liscananaun (aka Liscananaun DED) , Co. Galway
- Lisheenavalla (aka Lisheenavalla DED) , Co. Galway
- Lismaha (aka Lismaha DED) , Co. Roscommon
- Lismanny (aka Lismanny DED) , Co. Galway
- Lissanover (aka Lissanover DED) , Co. Cavan
- Lissonuffy (aka Lissonuffy DED) , Co. Roscommon
- Loughatorick (aka Loughatorick DED) , Co. Galway
- Lough Eask (Loch Iascaigh) (aka Lough Eask DED) , Co. Donegal
- Loughkeel (Loch Caol) (aka Loughkeel DED) , Co. Donegal
- Loughrea Rural (aka Loughrea Rural DED) , Co. Galway
- Loughrea Urban (aka Loughrea Urban DED) , Co. Galway
- Maas (An Más) (aka Maas DED) , Co. Donegal
- Magheraboy (aka Magheraboy DED) , Co. Donegal
- Magheraclogher (Machaire Chlochair) (aka Magheraclogher DED)
- Maghery (An Machaire) (aka Maghery DED) , Co. Donegal
- Malin (aka Malin DED) , Co. Donegal
- Manorcunningham (aka Manorcunningham DED) , Co. Donegal
- Marblehill (aka Marblehill DED) , Co. Galway
- Marhin (Márthain) (aka Marhin DED) , Co. Kerry
- Meelick (aka Meelick DED) , Co. Galway
- Meencargagh (Mín Charraigeach) (aka Meencargagh DED) , Co. Donegal
- Melvin (aka Melvin DED) , Co. Leitrim
- Millford (Baile na nGallóglach) (aka Millford DED) , Co. Donegal
- Milltown (aka Milltown DED) , Co. Galway
- Mín an Chladaigh (Mín an Chladaigh) (aka Meenaclady DED) , Co. Donegal
- Minard (An Mhin Aird) (aka Minard DED) , Co. Kerry
- Mintiaghs (aka Mintiaghs DED) , Co. Donegal
- Moat (aka Moat DED) , Co. Galway
- Monivea (aka Monivea DED) , Co. Galway
- Moore (aka Moore DED) , Co. Roscommon
- Mote (aka Mote DED) , Co. Roscommon
- Mountain (aka Mountain DED) , Co. Galway
- Mount Bellew (aka Mount Bellew DED) , Co. Galway
- Mounthazel (aka Mounthazel DED) , Co. Galway
- Moveen (aka Moveen DED) , Co. Clare
- Moville (aka Moville DED) , Co. Donegal
- Moyarta (aka Moyarta DED) , Co. Clare
- Moycullen (Maigh Cuilinn) , Co. Galway
- Moydrum (aka Moydrum DED) , Co. Westmeath
- Moyode (aka Moyode DED) , Co. Galway
- Moyrus (Maigh Rois) (aka Moyrus DED) , Co. Galway
- Muckanagh (aka Muckanagh DED) , Co. Westmeath
- Mulmosog (Maol Mosóg) (aka Mulmosog DED) , Co. Donegal
- Na Forbacha (Na Forbacha) (aka Furbough DED) , Co. Galway
- Neale (aka Neale DED) , Co. Mayo
- Newtown Cunningham (aka Newtown Cunningham DED) , Co. Donegal
- Oatfield (aka Oatfield DED) , Co. Galway
- Oranmore (Uarán Mór) (aka Oranmore DED) , Co. Galway
- Oughterard (Uachtar Ard) (aka Oughterard District Electoral Division) , Co. Galway
- Owenbrin (Abhainn Bhrainn) (aka Owenbrin DED) , Co. Mayo
- Owengowla (aka Owengowla DED) , Co. Galway
- Pallas (aka Pallas DED) , Co. Galway
- Pedara Vohers (aka Pedara Vohers DED) , Co. Cavan
- Pettigoe (aka Pettigoe DED) , Co. Donegal
- Portroyal (aka Portroyal DED) , Co. Mayo
- Portumna (aka Portumna DED) , Co. Galway
- Raford (aka Raford DED) , Co. Galway
- Rahasane (aka Rahasane DED) , Co. Galway
- Raheen (aka Raheen DED) , Co. Galway
- Rahona (aka Rahona DED) , Co. Clare
- Raphoe (aka Raphoe DED) , Co. Donegal
- Rathmelton (Ráth Mealtain) (aka Rathmelton DED) , Co. Donegal
- Rathmullan (Ráth Maoláin) (aka Rathmullan DED) , Co. Donegal
- Rinvyle (An Rinn Mhaoil) (aka Rinvyle DED) , Co. Galway
- Rockhill (aka Rockhill DED) , Co. Roscommon
- Roscommon Rural (aka Roscommon Rural DED) , Co. Roscommon
- Roscommon Urban (aka Roscommon Urban DED) , Co. Roscommon
- Rosguill (Ros Goill) (aka Rosguill DED) , Co. Donegal
- Rosmoylan (aka Rosmoylan DED) , Co. Roscommon
- Rosnakill (Ros na Cille) (aka Rosnakill DED) , Co. Donegal
- Ross (An Ros) (aka Ross DED) , Co. Galway
- Roundstone (Cloch na Rón) (aka Roundstone DED) , Co. Galway
- Rutland (Inis Mhic an Doirn) (aka Rutland DED) , Co. Donegal
- Ryehill (aka Ryehill DED) , Co. Galway
- Sailearna (Sailearna) (aka Selerna DED) , Co. Galway
- Scregg (aka Scregg DED) , Co. Roscommon
- Scregg (aka Scregg DED) , Co. Galway
- Seacor (Suí Corr) (aka Seacor DED) , Co. Donegal
- Shankill (aka Shankill DED) , Co. Galway
- Shrule (aka Shrule District Electoral Division) , Co. Mayo
- Sillerna (Sailearna) (aka Sillerna DED) , Co. Galway
- Skannive (Scainimh or Toghroinn Scainimh) , Co. Galway
- Skehanagh (aka Skehanagh DED) , Co. Galway
- Sliabh an Aonaigh (Sliabh an Aonaigh) (aka Slieveaneena DED) , Co. Galway
- Slievemahanagh (aka Slievemahanagh DED) , Co. Mayo
- St Johnstown (aka St Johnstown DED) , Co. Donegal
- Stradbally (aka Stradbally DED) , Co. Galway
- Stradbally (An Sráidbhaile) (aka Stradbally DED) , Co. Kerry
- Straid (aka Straid DED) , Co. Donegal
- Stralongford (aka Stralongford DED) , Co. Leitrim
- Stranorlar (aka Stranorlar DED) , Co. Donegal
- Swanlinbar (aka Swanlinbar DED) , Co. Cavan
- Taghboy (aka Taghboy DED) , Co. Galway
- Taghboy (aka Taghboy DED) , Co. Roscommon
- Taghmaconnell (aka Taghmaconnell DED) , Co. Roscommon
- Tantallon (aka Tantallon DED) , Co. Donegal
- Tarbert (aka Tarbert DED) , Co. Kerry
- Tawnawully (Tamhnaigh an Mhullaigh) (aka Tawnawully DED) , Co. Donegal
- Teebane (aka Teebane DED) , Co. Cavan
- Templecarn (aka Templecarn DED) , Co. Donegal
- Templedouglas (Tulach Dhúghlaise) (aka Templedouglas DED) , Co. Donegal
- Templeport (aka Templeport DED) , Co. Cavan
- Templetogher (aka Templetogher DED) , Co. Galway
- Termon (An Tearmann) (aka Termon DED) , Co. Donegal
- Thomastown (aka Thomastown DED) , Co. Roscommon
- Tiaquin (aka Tiaquin DED) , Co. Galway
- Tieveskeelta (An Taobh Scaoilte) (aka Tieveskeelta DED) , Co. Donegal
- Tiranascragh (aka Tiranascragh DED) , Co. Galway
- Tircahan (aka Tircahan DED) , Co. Cavan
- Toberadosh (aka Toberadosh DED) , Co. Galway
- Toberroe (aka Toberroe DED) , Co. Galway
- Toghroinn ceantair Ceann Trá (Ceann Trá) (aka Ventry DED) , Co. Kerry
- Toghroinn ceantair Dún Chaoin (Dún Chaoin) (aka Dunquin DED) , Co. Kerry
- Treantaghmucklagh (aka Treantaghmucklagh DED) , Co. Donegal
- Tuam (aka Tuam DED) , Co. Cavan
- Tuam Rural (Tuaim Tuath) (aka Tuam Rural DED) , Co. Galway
- Tuam Urban (Tuaim ( Baile) or Tuaim ( Baile)) (aka Tuam Urban DED) , Co. Galway
- Tubbrit (aka Tubbrit DED) , Co. Westmeath
- Tullamore Rural (Tulach Mhór (Tuath)) (aka Tullamore Rural DED) , Co. Offaly
- Tullamore Urban (Tulach Mhór (Uirbeach)) (aka Tullamore Urban DED) , Co. Offaly
- Tullig (aka Tullig DED) , Co. Clare
- Tullokyne (Tulaigh Mhic Aodháin) , Co. Galway
- Tullynaught (aka Tullynaught DED) , Co. Donegal
- Turlough (An Turlach) (aka Turlough DED) , Co. Galway
- Turmone (aka Turmone DED) , Co. Donegal
- Turrock (aka Turrock DED) , Co. Roscommon
- Tynagh (aka Tynagh DED) , Co. Galway
- Urney West (aka Urney West DED) , Co. Donegal
- Westport Rural (aka Westport Rural DED) , Co. Mayo
- Westport Urban (aka Westport Urban DED) , Co. Mayo
- Woodford (aka Woodford DED) , Co. Galway
- Wormhole (Poll na bPéist) (aka Wormhole District Electoral Division) , Co. Galway
Townlands
4152 mapped.
- Abberanville (Abberanville or Abar an Mhíl) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Abbey (An Mhainistir) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Abbeyfield (An Mhainistir) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Abbeygormacan (Mainistir Ó gCormacáin) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Abbeyland Great (Fearann na Mainistreach Mór) (aka Great Abbeyland) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Abbeyland Little (Fearann na Mainistreach Beag) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Abbeylands, Kilculliheen Civil Parish, Barony of Kilculliheen, Co. Waterford
- Abbeypark (Páirc na Mainistrach) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Abbeytown (Baile na Mainistreach) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Abbeyville (Baile na Mainistreach) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Achillbeg Island (Acaill Bheag) , Achill Civil Parish, Barony of Burrishoole, Co. Mayo
- Acre More (An tAcra Mór) , Kilteskill Civil Parish, Barony of Loughrea, Co. Galway
- Acres (na h-Acraí) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Acres (Na h-Acraí) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Addergoole (Eadargúil) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Addergoole (Eadra gCúl,) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Addergoole (Eadargúil) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Addragool (Eadargúil) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Aggard Beg (An tAgard Beag) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Aggard More (An tAgard Mór) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Aghalahard (Achadh Leathárd) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Aghany (Achanna) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Aghfarrel (Áth Fhearaíl) (aka Aghfarrell) , KIlbride Civil Parish, Barony of Lower Talbotstown, Co. Wicklow
- Agrimhill (Fardhroim) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Ahaglugger (Áth an Ghlugair) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Ahanduff Beg (An tÁthán Dubh Beag) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Ahanduff More (An tÁthán Dubh Mór) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Ahapouleen (Achadh Pholl Lín) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Aille (An Aill) , Kilteskill Civil Parish, Barony of Leitrim, Co. Galway
- Aille (An Aill) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Aille (Na hAille) (aka Cnoc na hAille) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Aille (na hAille) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Aillebaun (An Aill Bhan) , Aghagower Civil Parish, Barony of Murrisk, Co. Mayo
- Aillebrack (Aill Bhreac) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Aillenacally (Aill na Caillí) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Aillenaveagh (Aill na bhFiach) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Airgloony (Iar Cluana) , Tuam Civil Parish, Barony of Dunmore, Co. Galway
- Allagh Island, Tulacha Beigile Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Allaphreaghaun (Aill An Phréacháiin) , Rahoon Civil Parish, Barony of Moycullen, Co. Galway
- Alleendarra East (Aillín Darach Thoir) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Alleendarra West (Aillín Darach Thiar) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Allowan Island (Alúin) , Ballysakeery Civil Parish, Barony of Tirawley, Co. Mayo
- Allygola (Aill an Ghualaigh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Allykeolaun (Aill an Cheoláin) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- America, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Anbally (Anbhaile) , Kilmoylan Civil Parish, Barony of Clare, Co. Galway
- An Bhánrainn Bhán Thuaidh (An Bhánrainn Bhán Thuaidh) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- An Carn Mór Thiar (An Carn Mór Thiar) , Baile Chláir Civil Parish, Barony of Dunkellin, Co. Galway
- An Cheathrú Chaol (An Cheathrú Chaol) , Cong Civil Parish, Barony of Ross, Co. Galway
- An Cheathrú Rua Theas (An Cheathrú Rua Theas) (aka Carraroe) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- An Cheathrú Rua Thuaidh (An Cheathrú Rua Thuaidh) (aka Carraroe North) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- An Chloich Mhór Thuaidh (An Chloich Mhór Thuaidh) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- An Choill Bheag Íochtair (An Choill Bheag Íochtair) , Ross Civil Parish, Barony of Ross, Co. Galway
- An Fhaiche (An Fhaiche) , Ross Civil Parish, Barony of Ross, Co. Galway
- An Fhairche (An Fhairche) (aka Clonbur) , Ross Civil Parish, Barony of Ross, Co. Galway
- An Gort Mór (An Gort Mór) , Ballinrobe Civil Parish, Barony of Ross, Co. Mayo
- Ankers Bower, St Mary's Civil Parish, Barony of Brawny, Co. Westmeath
- An Laighdeacán (An Laighdeacán) , Baile Chláir Civil Parish, Barony of Dunkellin, Co. Galway
- An Léim Thiar (An Léim Thiar) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- An Léim Thoir (An Léim Thoir) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- An Mám Thoir (An Mám Thoir) , Ross Civil Parish, Barony of Ross, Co. Galway
- An Móinín Mór (An Móinín Mór) , Cong Civil Parish, Barony of Ross, Co. Galway
- Annagh (An tEanach Bhreac) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Annaghbeg (Eanach Beag) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Annaghbeg, Ahascragh Civil Parish, Barony of Clonmacnowen, Co. Galway
- Annaghbride (Eanach Bhríde) , Kilmeen Civil Parish, Barony of Leitrim, Co. Galway
- Annaghcallow (Eanach Calaidh) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Annaghcorrib (Eanach Corba or Eanach Coiribe) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Annaghdown (Eanach Dhúin) (aka Eanach Chuain) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Annagh East (An tEanach Thoir) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Annaghgowla Island (Eanach Gabhla) , Aghanagh Civil Parish, Barony of Tirerrill, Co. Sligo
- Annagh Hill (Cnoc an Eanaigh) , Kilmoylan Civil Parish, Barony of Clare, Co. Galway
- Annagh Island (Oileán Eanach) , Kilcommon Civil Parish, Barony of Erris, Co. Mayo
- Annagh Island East, Oughaval Civil Parish, Barony of Murrisk, Co. Mayo
- Annagh Island Middle, Oughaval Civil Parish, Barony of Murrisk, Co. Mayo
- Annagh Island West, Oughaval Civil Parish, Barony of Murrisk, Co. Mayo
- Annaghkeelane (Eanach Caoláin) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Annaghkeen (Eanach Caoin) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Annaghminnogue, Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Annaghroe Island (An tEanach Rua) , Kilbelfad Civil Parish, Barony of Tirawley, Co. Mayo
- Annaghteige Island (Eanach Thaidhg) , Kilbelfad Civil Parish, Barony of Tirawley, Co. Mayo
- Annaghvaan (Eanach Mheáin) (aka Annaghvaan Island) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Annagh West (An tEanach Thiar) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Annaghwood (Coill an Eanaigh) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Anna Island (Inis Anna) , Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- An Roisín Thiar (An Roisín Thiar) , Ross Civil Parish, Barony of Ross, Co. Galway
- An Roisín Thoir (An Roisín Thoir) , Ross Civil Parish, Barony of Ross, Co. Galway
- An Seanbhaile (An Seanbhaile) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- An Sián Rua (An Sián Rua or Sidheán) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- An Spidéal Thoir (An Spidéal Thoir) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- An tOileán Bán (An tOileán Bán) , Ross Civil Parish, Barony of Ross, Co. Galway
- An Tulaigh (An Tulaigh) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Apple Island (Oileán na n-Úll) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Ard (An Aird) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Ardagh (Ardach) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Ardamullivan (Árd Mhaolabháin) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Ardane (An tArdán) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Ardaun (Na hArdáin) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Ardaun East (An tArdán Thoir) , Cong Civil Parish, Barony of Ross, Co. Galway
- Ardaun West (An tArdán Thiar) , Cong Civil Parish, Barony of Ross, Co. Galway
- Ardbear (Ard Bheártha) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Ardberreen (Ard Beirín) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Ardboline Island (Ard Bóilin) (aka Ardboline) , Drumcliff Civil Parish, Barony of Carbury, Co. Sligo
- Ardcarn, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Ardderroo (Na hArd-Doiriú) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Ardderrynagleragh (Ard Doire na g-Cléirech) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Ard East (An Aird Thoir) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Ardfintan (Árd Fhiontáin) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Ardfry (Árd Fhraoigh) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Ardgaineen (Ard Géinín) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Ardgraigue (An Ardghráig) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Ardillaun (Ardoileán) , Cong Civil Parish, Barony of Ross, Co. Galway
- Ardillaun (Árd Oileán) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Ardkyle (Árd Choill) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Ardmoran (Ard Mórán) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Ardmore (An Aird Mhóir) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Ardmore (Árd Mor) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Ardmore Island, Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Ardnacross Island (Aill na Croise) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Ardnadoman East (Ard na dTuamann Thoir) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Ardnadoman West (Ard na dTuamann Thiar) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Ardnageeha (Ard na Gaoithe) , Cong Civil Parish, Barony of Ross, Co. Galway
- Ardnaglug (Ard na gClog) , Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Ardnagno (Árd na gCnó) , Killinny Civil Parish, Barony of Kiltartan, Co. Galway
- Ardnagreevagh (Árd na gCraobhach) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Ardnanagh (Ard na nEach) , Roscommon Civil Parish, Barony of Ballintober South, Co. Roscommon
- Ardnasillagh (Aird Na Saileach) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Ardnasodan (Ard na Sodán) , Kilmoylan Civil Parish, Barony of Clare, Co. Galway
- Ardour (Ard Obhair) , Kilconla Civil Parish, Barony of Dunmore, Co. Galway
- Ardrahan North (Ard Raithin Thuaidh) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Ardrahan South (Ard Raithin Theas) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Ardranny Beg (Ard Raithní Beag) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Ardranny More (Ard Raithní Mór) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Ardros (Ardros or Árd Ros) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Ardrumkilla (Ard Droma Coille) , Killower Civil Parish, Barony of Clare, Co. Galway
- Ardrumkilla (Ard Droma Coille) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Ardultagh (Ard Abhla) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Ardvarna (Ardbhearna) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Ardvarney (Ardbhearnaigh) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Ard West (An Aird Thiar) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Arkeen Beg (Aircin Beag) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Arkeen More (Aircin Mór) (aka Ardkeen More) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Ashbrook (An Bhuaile) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Ashfield (Gort na Fuinseannach) , Tiranascragh Civil Parish, Barony of Longford, Co. Galway
- Ashfield Demesne (An Cluainín) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Ashford (Ceapach Chorcóige Thoir) (aka Cappacorcogue East) , Cong Civil Parish, Barony of Ross, Co. Galway
- Ashford, Creagh Civil Parish, Barony of Moycarn, Co. Galway
- Ash Island, Templecarn Civil Parish, Barony of Tirhugh, Co. Donegal
- Ash Island, Kilbryan Civil Parish, Barony of Boyle, Co. Roscommon
- Athenry (Baile Átha an Rí) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Athlone (Baile Átha Luain) , St Mary's Civil Parish, Barony of Brawny, Co. Westmeath
- Athry (Athraighe) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Attavally Island (Oileán Áit an Bhaile) , Kilcommon Civil Parish, Barony of Erris, Co. Mayo
- Attibrassil (Áit Tí Breasail) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Atticlogh (Aith Tighe Cloch) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Atticorra, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Atticorra, Creagh Civil Parish, Barony of Moycarn, Co. Galway
- Attidermot (Áit Tí Diarmada) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- Attigara (Áit Tí Gadhra) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Attigoddaun (Áit Tí Geadáin) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Attikee (Ait Tí Caoich) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Attimany (Áit Tí Maine) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Attimonbeg (Áth Tíomáin Beag) , Killimordaly Civil Parish, Barony of Tiaquin, Co. Galway
- Attimonmore North (Áth Tíomáin Mór Thuaidh) , Killimordaly Civil Parish, Barony of Tiaquin, Co. Galway
- Attimonmore South (Áth Tíomáin Mór Theas) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Attiregan (Áit Tí Riagáin) , Ballymacward Civil Parish, Barony of Kilconnell, Co. Galway
- Attirory, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Attirowerty (Áit Tí Robhartaigh) (aka Attyrowerty) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Attithomasrevagh (Áit Tí Tomáis Riabhaigh) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Attyfineen (Áit Tí Finín) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Attyshonock (Áit Tí Seonac) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Aubwee (An tÁth Buí) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Aubwee (An tÁth Buí) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Aucloggeen (Áth an Chloigín) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Aughanure (Achadh na nIúr) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Aughinish (Eachinis) (aka Aughinish Island) , Oughtmama Civil Parish, Barony of Burren, Co. Clare
- Aughrus Beg (Each-Ros Beag) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Aughrus More (Eachros Mór) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Avery Island (Oileán Aimhréidh) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Avough Island, Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Back (An Bac) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Backpark (An Chúlpháirc) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Baile na hAbhann (Baile na hAbhann) , Rahoon Civil Parish, Barony of Moycullen, Co. Galway
- Baile na hAbhann Thuaidh (Baile na hAbhann Thuaidh) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Ballagh (An Bealach) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Ballagh (An Bealach) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Ballaghbaun (An Bealach Bán) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Ballagh East (An Bealach Thoir) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Ballagh West (An Bealach Thiar) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Ballard (An Baile Ard) , Cong Civil Parish, Barony of Ross, Co. Galway
- Ballard East (An Baile Árd Thoir) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Ballardiggan (Baile Arda Gaibhle) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Ballard West (An Baile Árd Thiar) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Balleeghan Upper, Clonca Civil Parish, Barony of Inishowen East, Co. Donegal
- Ballinaboy (Béal Átha na Bá) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Ballinafad (Béal an Aith Fada) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Ballinaleama (Baile na Léime) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Ballindarra (Béal Átha na Darach) , Birr Civil Parish, Barony of Ballybritt, Co. Offaly
- Ballinderreen (Baile An Doirín) , Drumacoo Civil Parish, Barony of Dunkellin, Co. Galway
- Ballinderry (Baile an Doire) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Ballindooly (Baile An Dúlaigh) (aka Ballindooly) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Ballindrimna (Baile an Droimne) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Ballinduff (Baile An Duibh) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Ballinduff (Baile an Duibh) , Ardrahan Civil Parish, Barony of Kiltartan, Co. Galway
- Ballinfoile (Baile An Phoill) , St Nicholas Civil Parish, Barony of Galway, Co. Galway
- Ballingarry (Ballingarry) , Kilchreest Civil Parish, Barony of Dunkellin, Co. Galway
- Ballingarry (Baile an Gharraí) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Ballinillaun (Baile an Oileáin) , Stradbally Civil Parish, Barony of Dunkellin, Co. Galway
- Ballinla (Baile an Leá) , Isertkelly Civil Parish, Barony of Loughrea, Co. Galway
- Ballinlaur (Béal Átha na Lára) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Ballinlawless (Baile an Laighléisigh) , Kilteskill Civil Parish, Barony of Leitrim, Co. Galway
- Ballinlough (Baile an Locha) , Ballymacward Civil Parish, Barony of Kilconnell, Co. Galway
- Ballinlough (Baile an Locha) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Ballinloughaun (Baile an Locháin) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Ballinlug (Baile na Log) , Tiranascragh Civil Parish, Barony of Longford, Co. Galway
- Ballinphuill (Baile an Phoill) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Ballinphuill (Baile an Phoill) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Ballinrooaun (Baile) , Ardrahan Civil Parish, Barony of Loughrea, Co. Galway
- Ballinrooaun (Baile an Ruáin) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Ballinsmaul (Baile an Smálaigh) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Ballintemple (Baile an Teampaill) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Ballintleva (Baile an tSléibhe) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Ballintleva (Baile an tSléibhe) , Killower Civil Parish, Barony of Clare, Co. Galway
- Ballintober (Baile an Tobair) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Ballintober (Baile an Tobair) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Ballintober East (Baile an Tobair Thoir) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Ballintober West (Baile an Tobair Thiar) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Ballinvilla (Baile an Bhile) , Kilvine Civil Parish, Barony of Clanmorris, Co. Mayo
- Ballinvoher (Baile an Bhóthair) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Ballinvoher (Baile an Bhóthair) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Ballisnahyny (Baile Lis na hEidnní) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Ballisnahyny (Baile Lis na hEidnní) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Ballooly (Baile Úlaidh) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Ballooly (Eyre) (Baile Úlaidh (Eyre)) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Ballooly (Kelly) (Baile Úlaidh (Kelly)) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Ballooly (Mc Dermott) (Baile Úlaidh (Mc Dermott)) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Ballyaneen North (Baile Uí Ainín Thuaidh) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Ballyaneen South (Baile Uí Ainín Theas) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Ballyargadaun (Baile Uí Argadáin) , Leitrim Civil Parish, Barony of Leitrim, Co. Galway
- Ballyargadaun, Ballinchalla Civil Parish, Barony of Kilmaine, Co. Mayo
- Ballybaan Beg (An Baile Bán Beag) , St Nicholas Civil Parish, Barony of Galway, Co. Galway
- Ballybaan More (An Baile Bán Mór) , St Nicholas Civil Parish, Barony of Galway, Co. Galway
- Ballybackagh (An Baile Bacach) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Ballybackagh (An Baile Bacach) , Ardrahan Civil Parish, Barony of Loughrea, Co. Galway
- Ballybackagh (Baile Bacach) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Ballybaun (An Baile Bán) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Ballybaun (An Baile Bán) , Killogilleen Civil Parish, Barony of Loughrea, Co. Galway
- Ballybaun (An Baile Bán) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Ballybaun (An Baile Bán) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Ballybaun (An Baile Bán) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Ballybaun (An Baile Bán) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Ballybeg Island (aka Ballybeg) , Inishturk Civil Parish, Barony of Murrisk, Co. Mayo
- Ballyboe Glencar, Conwal Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Ballyboggan (Baile an Bhogáin) , Monivea Civil Parish, Barony of Kilconnell, Co. Galway
- Ballyboy (An Baile Buí) , Kilbennan Civil Parish, Barony of Dunmore, Co. Galway
- Ballyboy (An Baile Buí) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Ballyboy (An Baile Buí) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Ballyboyle Island, Killymard Civil Parish, Barony of Banagh, Co. Donegal
- Ballybranagan (Baile Ui Bhranagáin) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Ballybrian (Baile Bhriain) , Killallaghtan Civil Parish, Barony of Clonmacnowen, Co. Galway
- Ballybride, Roscommon Civil Parish, Barony of Ballintober South, Co. Roscommon
- Ballybrit (Baile An Bhriotaigh) , St Nicholas Civil Parish, Barony of Galway, Co. Galway
- Ballybroder (Baile Uí Bhruadair) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Ballybroder (Baile Uí Bhruadair) , Kilmeen Civil Parish, Barony of Loughrea, Co. Galway
- Ballybrone (Baile Uí Bhróin) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Ballybuck North (Baile Boic Thuaidh) , Killinny Civil Parish, Barony of Kiltartan, Co. Galway
- Ballybuck South (Baile Boic Theas) , Killinny Civil Parish, Barony of Kiltartan, Co. Galway
- Ballyburke (Baile Na mBúrcach) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Ballycahalan (Baile Uí Chathaláin) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Ballycahill (Bealach Sháithil) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Ballycally Island (Oileán Bhaile an Chalaidh) , Burriscarra Civil Parish, Barony of Carra, Co. Mayo
- Ballycasey (Baile Uí Chathasaigh) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Ballyclare Island, Cloontuskert Civil Parish, Barony of Ballintober South, Co. Roscommon
- Ballyclare North Island, Cloontuskert Civil Parish, Barony of Ballintober South, Co. Roscommon
- Ballycleary (Baile Uí Chléirigh) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Ballycolgan (Baile Uí Cholgan) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Ballyconlought (Baile Uí Chonlachta) , Cargin Civil Parish, Barony of Clare, Co. Galway
- Ballyconneely (Baile Conaola) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Ballyconnell (Baile Uí Chonaill) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Ballycoony (Baile Uí Chuana) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Ballycorban (Baile Uí Chorbáin) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Ballycottin Island, Cloyne Civil Parish, Co. Cork
- Ballycottin Island (Small), Cloyne Civil Parish, Co. Cork
- Ballycrossaun (Baile Crosáin) , Tiranascragh Civil Parish, Barony of Longford, Co. Galway
- Ballycuddy (Ballycuddy) , Kilchreest Civil Parish, Barony of Dunkellin, Co. Galway
- Ballycuirke East (Baile Uí Chuirc Thoir) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Ballycuirke West (Baile Uí Chuirc Thiar) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Ballyculloo (Baile Cholú) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Ballycurrin Demesne (Baile an Choirrín) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Ballycusheen (Baile Chúisín) , Kilmainemore Civil Parish, Barony of Kilmaine, Co. Mayo
- Ballydaly (Baile Uí Dhálaigh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Ballydangan (Baile Daighean) , Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Ballydavid (Baile Dháith or Baile Dháithí) , Kilcooly Civil Parish, Barony of Leitrim, Co. Galway
- Ballydavid Middle (Baile Dháibhí Láir) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Ballydavid North (Baile Dháibhí Thuaidh) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Ballydavid South (Baile Dháibhí Theas) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Ballydonagh (Baile Dhonncha) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Ballydonagh (Baile Mhic Dhonncha or Baile Mhic Dhonnchadha) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Ballydonnellan (Baile Uí Dhónalláin) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Ballydonnellan East (Baile Uí Dhónalláin Thoir) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Ballydonnellan West (Baile Uí Dhónalláin Thiar) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Ballydoogan (Beal Átha Dúgáin) , Kilmeen Civil Parish, Barony of Leitrim, Co. Galway
- Ballydoolough (Baile Dhúlocha) , Ross Civil Parish, Barony of Ross, Co. Galway
- Ballydotia East (An Baile Dóite Thoir) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Ballydotia West (An Baile Dóite Thiar) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Ballyeighter (An Baile Íochtair) , Kilteskill Civil Parish, Barony of Leitrim, Co. Galway
- Ballyeighter (An Baile Íochtarach) , Aughrim Civil Parish, Barony of Clonmacnowen, Co. Galway
- Ballyeighter (An Baile Íochtair) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Ballyfintan (Béal Átha Fiontain) , Abbeygormacan Civil Parish, Barony of Leitrim, Co. Galway
- Ballyfolan (Baile Uí Fhualáin) , KIlbride Civil Parish, Barony of Lower Talbotstown, Co. Wicklow
- Ballyfoyle (Baile Foighil) , KIlbride Civil Parish, Barony of Lower Talbotstown, Co. Wicklow
- Ballyfruit (Baile an Phrútaigh) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Ballygally (Baile an Ghallaigh) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Ballygarraun (Baile an Gharráin) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Ballygarraun (Baile an Gharráin) , Isertkelly Civil Parish, Barony of Loughrea, Co. Galway
- Ballygarraun North (Baile an Gharráin Thuaidh) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Ballygarraun South (Baile an Gharráin Theas) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Ballygarraun West (Baile an Gharráin Thiar) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Ballygarriff (An Baile Garbh) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Ballygasty (Bile Gasta) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Ballygeagin (Baile an Ghéigín) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Ballyglass (An Baile Glas) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Ballyglass (An Baile Glas) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Ballyglass (An Baile Glas) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Ballyglass (An Baile Glas) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Ballyglass (An Baile Glas) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Ballyglass East (An Baile Glas Thoir) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Ballyglass (Mahon) (An Baile Glas (Mahon)) , Ahascragh Civil Parish, Barony of Clonmacnowen, Co. Galway
- Ballyglass West (An Baile Glas Thiar) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Ballygortagh, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Ballygowan (Baile an Ghabhann) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Ballygunneen (Baile Uí Dhuinnín) , Killinan Civil Parish, Barony of Loughrea, Co. Galway
- Ballyhale (Baile Héil) , Cargin Civil Parish, Barony of Clare, Co. Galway
- Ballyhanna, Kilbarron Civil Parish, Barony of Tirhugh, Co. Donegal
- Ballyhanry (Baile Hanraí) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Ballyhogan (Baile Uí Ogáin) , Abbeygormacan Civil Parish, Barony of Leitrim, Co. Galway
- Ballyhoolahan (Baile Mhic Uallacháin) , Aughrim Civil Parish, Barony of Clonmacnowen, Co. Galway
- Ballyhoorisky Island (Oileán Bhaile Uí Fhuaruisce) , Clondavaddog Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Ballyhoose (Bile Chuas) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Ballyhugh, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Ballyhugh (Baile Uí Aodha) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Ballykeeran (Béal Átha Chaorthainn) , Kiltullagh Civil Parish, Barony of Loughrea, Co. Galway
- Ballykilladea (Baile Mhic Giolla Dhé) , Killinny Civil Parish, Barony of Kiltartan, Co. Galway
- Ballykine Lower (Baile Uí Chadhain Íochtarach) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Ballykine Upper (Baile Uí Chadhain Uachtarach) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Ballyknock (Baile an Chnoic) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Ballyknock (Baile an Chnoic) , Kilteskill Civil Parish, Barony of Loughrea, Co. Galway
- Ballylahy (Baile Uí Fhlaithimh) , Kilthomas Civil Parish, Barony of Kiltartan, Co. Galway
- Ballylara (Baile Uí Ghleara) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Ballylast (An Baile Loiscthe) , Clonleigh Civil Parish, Barony of Raphoe North, Co. Donegal
- Ballylee (Baile Uí Laoi) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Ballylee (Baile Uí Laoigh) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Ballyleen (Baile Lín) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Ballylennan (Baile Uí Leannaín) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Ballylin East (Baile Uí Fhloinn Thoir) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Ballylin West (Baile Uí Fhloinn Thiar) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Ballyloughaun (Baile an Locháin) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Ballyluoge (Baile Uí Laoghóg) , Killoran Civil Parish, Barony of Clonmacnowen, Co. Galway
- Ballymabilla (Baile Maí Bile) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Ballymacarry, Fahan Lower Civil Parish, Barony of Inishowen West, Co. Donegal
- Ballymacegan Island (Baile Mhic Aogáin) , Lorrha Civil Parish, Barony of Lower Ormond, Co. Tipperary
- Ballymacgibbon North (Baile Mhic Giobúin Thuaidh) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Ballymacgibbon South (Baile Mhic Giobúin Theas) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Ballymaconry (Baile Conraoi or Baile ‘ic Conroi) (aka Kingstown Glebe) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Ballymaglancy (Baile Mhic Fhlannchaidh) , Cong Civil Parish, Barony of Ross, Co. Galway
- Ballymanagh (An Baile Meánach) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Ballymanagh (Baile na Manach) , Clontuskert Civil Parish, Barony of Longford, Co. Galway
- Ballymaquiff North (Baile Mhic Dhuibh Thuaidh) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Ballymaquiff South (Baile Mhic Dhuibh Theas) , Ardrahan Civil Parish, Barony of Kiltartan, Co. Galway
- Ballymarcahaun (Baile Uí Mharcacháin) , Ardrahan Civil Parish, Barony of Kiltartan, Co. Galway
- Ballymariscal (Baile an Mharascalaigh) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Ballymerret (Baile an Bhairéadaigh) , Leitrim Civil Parish, Barony of Leitrim, Co. Galway
- Ballymoneen (Baile an Mhóinín) , Killogilleen Civil Parish, Barony of Loughrea, Co. Galway
- Ballymoneen (Baile an Mhóinín) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Ballymoneen East (Baile an Mhóinín Thoir) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Ballymoneen West (Baile An Mhóinín Thiar) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Ballymore (An Baile Mór) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Ballymore (An Baile Mór) (aka Cregballymore) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Ballymore Lower (An Baile Mór Íochtarach) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Ballymore Upper (An Baile Mór Uachtarach) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Ballymulfaig (Baile Mhaol Faidhg) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Ballymullen (Baile Uí Mhaoláin) , Killinan Civil Parish, Barony of Loughrea, Co. Galway
- Ballymurphy (Baile Uí Mhurchú) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Ballymurry (Baile Uí Mhuirígh) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Ballynabanaba (Baile na Banaba) , Fohanagh Civil Parish, Barony of Kilconnell, Co. Galway
- Ballynabucky (Baile na bPoicaí) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Ballynabucky (Baile na bPoicí) , Kilthomas Civil Parish, Barony of Kiltartan, Co. Galway
- Ballynaclogh (Baile na Cloiche) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Ballynacloghy (Baile na Cloiche) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Ballynacourty (Baile Na Cúirte) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Ballynacregga (Baile na Creige) , Cargin Civil Parish, Barony of Clare, Co. Galway
- Ballynacreg North (Baile na Creige Thuaidh) , Cummer Civil Parish, Barony of Clare, Co. Galway
- Ballynacurragh (Baile an Churraigh) , Kilchreest Civil Parish, Barony of Loughrea, Co. Galway
- Ballynagar (Béal Átha na gCarr) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Ballynageeha (Baile Na Gaoithe) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Ballynageeragh (Baile na gCaorach) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Ballynagittagh (Baile na nGiotach) , Kilconla Civil Parish, Barony of Dunmore, Co. Galway
- Ballynagran (Baile na nGarrán) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Ballynagran (Baile na gCrann) , Kilchreest Civil Parish, Barony of Loughrea, Co. Galway
- Ballynagreeve (Barr na gCraobh) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Ballynahallia (Baile Na h-Aille) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Ballynaheskeragh (Baile na hEiscreach) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Ballynahinch (Baile na h-inse) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Ballynahistil (Baile na hIstile) , Kilcooly Civil Parish, Barony of Leitrim, Co. Galway
- Ballynahivnia (Béal Átha na hAibhne) , Kilconierin Civil Parish, Barony of Loughrea, Co. Galway
- Ballynahown (Baile na hAbhann) , Lickerrig Civil Parish, Barony of Athenry, Co. Galway
- Ballynahown (Baile na hAbhann) , Aughrim Civil Parish, Barony of Clonmacnowen, Co. Galway
- Ballynahowna (Baile na hAbhna) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Ballynahown East (Baile na hAbhann Thoir) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Ballynahown South (Baile na h-Abhann Theas) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Ballynakill (Baile na Coille) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Ballynakill (Baile na Cille) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Ballynakill (Baile na Coille) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Ballynakillew (Baile Na Coille) , Cargin Civil Parish, Barony of Clare, Co. Galway
- Ballynalacka (Baile na Leaca) , Cargin Civil Parish, Barony of Clare, Co. Galway
- Ballynalty (Baile an Alltaigh) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Ballynamanagh East (Baile na Manach Thoir) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Ballynamanagh West (Baile na Manach Thiar) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Ballynamannin (Béal Átha na Manainne) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Ballynamantan (Béal Átha Na Miontán) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Ballynamockagh (Baile na mBacach) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Ballynamona (Baile na Móna) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Ballynamona (Baile na Móna) , Abbeyknockmoy Civil Parish, Barony of Tiaquin, Co. Galway
- Ballynamona (Baile na Móna) , Cong Civil Parish, Barony of Ross, Co. Galway
- Ballynamucka (Baile na Muice) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Ballynamuddagh (Baile na mBodach) , Killallaghtan Civil Parish, Barony of Clonmacnowen, Co. Galway
- Ballynamuddagh (Baile na mBodach) , Donanaghta Civil Parish, Barony of Longford, Co. Galway
- Ballynamurdoon (Baile na mBurdúnach) , Abbeygormacan Civil Parish, Barony of Leitrim, Co. Galway
- Ballynanulty (Baile na nUltaí) , Killimordaly Civil Parish, Barony of Tiaquin, Co. Galway
- Ballynascragh (Baile na Scrath) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Ballynasheeoge (Baile na Sióg) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Ballynastaig (Baile na Stéige) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Ballynastaig (Baile na Stéige) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Ballynew (Baile Niua) (aka New Village) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Ballynew (An Baile Nua) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Ballynew (An Baile Nua) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Ballynew (An Baile Nua) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Ballyscully (Baile na Scoile) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Ballyshea (Baile an tSí) , Killinan Civil Parish, Barony of Dunkellin, Co. Galway
- Ballysheedy (Baile Uí Shioda) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Ballyshrule (Baile Sruthail) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Ballyskeagh (An Baile Sceicheach) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Ballyterrim (Béal Átha an tSirriaim) , Killallaghtan Civil Parish, Barony of Clonmacnowen, Co. Galway
- Ballyturick (Béal Átha an tSiúraic) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Ballyturin (Béal Átha Toirinn) (aka Ballyturn) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Ballyvaheen (Baile Mhaithín) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Ballyvoher (Baile Uí Mhocháin) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Ballyvullaun (Baile Uí Mhaoláin) , Drumacoo Civil Parish, Barony of Dunkellin, Co. Galway
- Ballyward (Baile an Bhaird) , Blessington Civil Parish, Barony of Lower Talbotstown, Co. Wicklow
- Ballyweeaun (Baile Uí Bhuíáin) , Ross Civil Parish, Barony of Ross, Co. Galway
- Ballyweela (Baile Uí Mhaola) , Kilcommon Civil Parish, Barony of Kilmaine, Co. Mayo
- Ballywinna (Baile an Mhuine) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Ballywulash (Baile Uí Mhaolghlais) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Balrickard (Baile Riocaird) , Cargin Civil Parish, Barony of Clare, Co. Galway
- Balrobuck Beg (Baile Robac Beag) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Balrobuck More (Baile Robac Mór) (aka Balrobuckmore) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Banagher (Beannchar) , Addergoole Civil Parish, Barony of Dunmore, Co. Galway
- Banraghbaun South (Banrach Bán Theas) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Barna (An Bhearna) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Barna (Bearna) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Barnaboy (An Bhearna Bhuí) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Barnaboy (An Bhearna Bhuí) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Barnaboy (An Bhearna Bhuí) , Clontuskert Civil Parish, Barony of Longford, Co. Galway
- Barnaboy (An Bhearna Bhui) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Barnacragh (Bearna Chreach) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Barnacranny (Barr na Crannaí) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Barnagorteeny (Barr na nGoirtíní) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Barnahallia (Bearna Aille) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Barnahowna (Barr na hAbhna) , Ballinrobe Civil Parish, Barony of Ross, Co. Mayo
- Barnanang (Bárr na n-Eang) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Barnanoraun (Moyrus) (Bárr Na n-Urán) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Barnanoraun (Omey) (Bárr na n-Uarán) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Barnavihall (Bearna Mheathán) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Barnpark (Páirc an Sciobóil) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Barr a' Doire (Barr a' Doire) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Barragarraun (Barr an Gharráin) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Barranny (Barr Eanaigh) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Barratleva (Barr an tSléibhe) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Barratoor (Barr an Tuair) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Barratreana (Barr an Treana) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Barravilla (Barr an Bhile) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Barrettspark (Páirc an Bhairéadaigh) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Barrevagh (Barr Riabhach) (aka Baurrevagh) , Ross Civil Parish, Barony of Ross, Co. Galway
- Barrusheen (Barr Roisín) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Baunmore (An Bán Mór) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Baunmore (An Bán Mór) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Baunoge (An Bhánóg) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Baunoge (Bánchnoc) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Baunragh (An Bhánrach) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Baunrosbeg (aka Baunros Beg) , Ballysakeery Civil Parish, Barony of Tirawley, Co. Mayo
- Baunrosmore (aka Baunros More) , Ballysakeery Civil Parish, Barony of Tirawley, Co. Mayo
- Bauntia (Na Báinte) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Baunyknav (Báin an Chneaimh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Baurslievenaroy (Barr Sléibhe na Ráithe) (aka Barrslievenaroy) , Ross Civil Parish, Barony of Ross, Co. Galway
- Bautagh (Báiteach) (aka Bauttagh) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Bawnmore (An Bán Mór) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Bawnoge, Boystown Civil Parish, Barony of Lower Talbotstown, Co. Wicklow
- Beagh (An Bheitheach) , Kilconla Civil Parish, Barony of Dunmore, Co. Galway
- Beagh (An Bheitheach) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Beagha (Beitheach Áith) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Beaghbeg, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Beagh Beg (An Bheitheach Bheag) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Beagh Brabazon, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Beaghcauneen (Beitheach Cháinín) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Beagh Island (Oileán Beitheach) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Beagh More (An Bheitheach Mhór) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Beagh Naghten, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Beaghroe (An Bheitheach Rua) , Dunmore Civil Parish, Barony of Dunmore, Co. Galway
- Beagh Trench, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Beaghy Island (An Bheitheach) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Beaghy North (An Bheitheach Thuaidh) (aka Beaghy Island North) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Bealadangan (Béal a' Daingin) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Bealnalappa (Béal Na Leaba) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Beaufort (Lios an Phúca) , Knockane Civil Parish, Barony of Dunkerron North, Co. Kerry
- Beech Hill (Uachtar Cluana) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Beefield (Cluain Beach) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Beetle Island North (Oileán an tSindile Thuaidh) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Beetle Island South (Oileán an tSindile Theas) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Beginish (Beag Inis) , Dún Chaoin Civil Parish, Barony of Corkaguiny, Co. Kerry
- Bellafa (Béal Átha Feá) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Bellagill, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Bellalegaun (Béal an Liagáin) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Bellanabriscaun (Béal Átha na mBrioscán) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Bellanagarraun (Béal Átha na nGarrán) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Bellayarha North (Béal an Ghearrtha Thuaidh) , Bullaun Civil Parish, Barony of Loughrea, Co. Galway
- Bellayarha South (Béal an Ghearrtha Theas) , Bullaun Civil Parish, Barony of Loughrea, Co. Galway
- Belleek (Béal Leic) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Belleville Demesne (Diméin Belleville) , Monivea Civil Parish, Barony of Clare, Co. Galway
- Belmont (Olltóir) , Liskeevy Civil Parish, Barony of Dunmore, Co. Galway
- Ben Beg (An Bhinn Bheag) (aka Benbeg) , Grange Civil Parish, Barony of Loughrea, Co. Galway
- Ben More (An Bhinn Mhór) , Grange Civil Parish, Barony of Loughrea, Co. Galway
- Bernard's Island (Oileán Bhearnada) (aka Bernards Island) , Calry Civil Parish, Barony of Carbury, Co. Sligo
- Biggera Beg (Bigire Beag) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Biggera More, Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Big Island (An tOileán Mór) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Big Island (Inse Mhór) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Big Island (An tOileán Mór) , Ross Civil Parish, Barony of Ross, Co. Galway
- Bilberry Island (Oileán na bhFraochóg) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Bingarra (An Bhinn Ghearrtha) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Binn (An Bhinn) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Birbeg Island (Bior Beag) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Bird Island (Oileán na nÉan) , Tuosist Civil Parish, Barony of Glanarought, Co. Kerry
- Bird Island (Oileán na nÉan) , Ballintober Civil Parish, Barony of Carra, Co. Mayo
- Bird Island, Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Birmore Island (Bior Mór) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Bishop's Island, Clondahorky Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Bishop's Islands (Oileáin an Easpaig) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Blackgarden (An Garraí Dubh) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Black Island (An tOileán Dubh) , Ballinchalla Civil Parish, Barony of Kilmaine, Co. Mayo
- Blackrock (An Charraig Dhubh) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Black Rock, Kilmore Civil Parish, Barony of Erris, Co. Mayo
- Black Rock, Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Blacksticks (Cagála) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Black Weir, Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Blean (An Bhléan) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Bleanmore Island (An Bhléan Mhór) , Kilcommon Civil Parish, Barony of Erris, Co. Mayo
- Bleanoran (Bléan Óráin) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Blindwell (Tobar Caoch) , Kilconla Civil Parish, Barony of Dunmore, Co. Galway
- Boadaun (Buadán) , Kilconla Civil Parish, Barony of Dunmore, Co. Galway
- Bogganfin, St Peter's (part) Civil Parish, Barony of Athlone, Co. Roscommon
- Boggaun (An Bogán) , Kilchreest Civil Parish, Barony of Loughrea, Co. Galway
- Bogpark (Páirc an Bhogaigh) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Bohaboy (Botha Buí) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Bohaun (Bothán) , Ross Civil Parish, Barony of Ross, Co. Galway
- Boheeshal (Both Íseal) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Bohercuill (Bóthar Coill) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Boherduff (An Bóthar Dubh) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Bohilmore Island (An Buachaill Mór) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Bohoona East (Both Chuana Thoir) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Bohoona West (Both Chuana Thiar) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Bolag (Both Leag) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Boley (An Bhuaile) , Kilmalinoge Civil Parish, Barony of Longford, Co. Galway
- Boley (An Bhuaile) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Boleybeg (An Bhuaille Bheag) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Boleybeg East (An Bhuaile Bheag Thoir) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Boleybeg West (An Bhuaile Bheag Thiar) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Boleycurheen (Buaile Chomhroinne) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Boleydorragha (An Bhuaile Dhorcha) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Boleymore (An Bhuaile Mhór) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Boleynaminna (Buaile na Mine) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Boleynanollag (Buaille na Nollag) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Boleynasruhaun (Buaille na Sruthán) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Boleyneendorrish (Bualle an Aon Dorais) , Ardrahan Civil Parish, Barony of Loughrea, Co. Galway
- Boleyphaudeen (Buaile Phaidin) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Boleyroe (An Bhuaile Rua) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Boleyvaunaun (Buaile Uí Bhánáin) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Bolisheen (Buaile Uí Oisín) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Bonniamillish Island (Oileán an Bhainne Mhilis) , Ballyovey Civil Parish, Barony of Carra, Co. Mayo
- Boocaun (Buacán) , Ross Civil Parish, Barony of Ross, Co. Galway
- Booey Island (Buaí or Buaí Mór) (aka Booeymore) , Cong Civil Parish, Barony of Ross, Co. Galway
- Bookeen (An Buaicín) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Bookeen North (An Buaicín Thuaidh) , Lickerrig Civil Parish, Barony of Athenry, Co. Galway
- Bookeen South (An Buaicín Theas) , Lickerrig Civil Parish, Barony of Dunkellin, Co. Galway
- Boolagare (Buaile Géarr) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Boolard (Buaile Ard) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Boolard Island, Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Boranaraltry (Buaile an Araltaigh) , Kiltiernan Civil Parish, Barony of Rathdown, Co. Dublin
- Both Loiscthe Íochtair (Both Loiscthe Íochtair) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Both Loiscthe Uachtair (Both Loiscthe Uachtair) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Bottom (An Tóin) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Bouluskeagh (Both Loiscthe) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Bovroughaun (Both Bhrocháin) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Boyhill (Cnocán na mBuachaillí) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Braadillaun (Bráidoileán) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Brackernagh Clancarty, Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Brackernagh Persse, Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Brackery (Breacaire) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Brackery North (Breacaire Thuaidh) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Brackery South (Breacaire Theas) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Bracklagh (An Bhreaclach) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Bracklagh, Tuam Civil Parish, Barony of Dunmore, Co. Galway
- Bracklagh Grange (Gráinseach na Breaclaí) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Brackloon, Kilmainemore Civil Parish, Barony of Kilmaine, Co. Mayo
- Brackloon (Breac Chluain) , Kilmoylan Civil Parish, Barony of Clare, Co. Galway
- Brackloon (Breac-chluain) , Killimordaly Civil Parish, Barony of Athenry, Co. Galway
- Brackloon, Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Brackloon (Breac-Chluain) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Brackloon (Breac Chluain) , Killererin Civil Parish, Barony of Clare, Co. Galway
- Brackloon (Breac-Chluain) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Brackloon (Breac Chluain or Breac-chluain) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Brackloon (Breac-chluain) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Brackloonbeg (Breac-chluain Beag) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Brannock Island (Oileán Dá Bhranóg) , Árainn Civil Parish, Barony of Aran, Co. Galway
- Brannock Island Middle (An tOileán Thoir) , Árainn Civil Parish, Barony of Aran, Co. Galway
- Brannock Island South (An tOileán Thiar) , Árainn Civil Parish, Barony of Aran, Co. Galway
- Branraduff (Branra Dubh) , Crossboyne Civil Parish, Barony of Clanmorris, Co. Mayo
- Bray Commons (Coimín Bhré) , Old Connaught Civil Parish, Barony of Rathdown, Co. Wicklow
- Breandrim (Bréandroim) , Cong Civil Parish, Barony of Ross, Co. Galway
- Breanloughan (An Bréan Lochán) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Brearoge Island, Cashel Civil Parish, Barony of Rathcline, Co. Longford
- Bredagh (An Bhréadach) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Breenaun (Na Braonáin) , Ross Civil Parish, Barony of Ross, Co. Galway
- Bridgepark (Páirc an Droichid) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Brimnoge Island, Meelick Civil Parish, Barony of Longford, Co. Galway
- Brockagh (An Bhrocach) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Brockagh (An Bhrocach) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Brodullagh North (Bródalach Thuaidh) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Brodullagh South (Bródalach Theas) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Brownsisland (Oileán an Bhrúnaigh) , Kilmainemore Civil Parish, Barony of Kilmaine, Co. Mayo
- Brownville (Baile An Bhrúnaigh) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Brucken (Brocainn) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Brusk (An Bhroscach) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Budellagh and Cloghbrack (Broideal agus An Chloch Bhreac) , Donanaghta Civil Parish, Barony of Longford, Co. Galway
- Buffy (Both Bhuí) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Bulcaun (Bolcán) , Kilconla Civil Parish, Barony of Dunmore, Co. Galway
- Bullaun (An Mullán) , Moorgagagh Civil Parish, Barony of Kilmaine, Co. Mayo
- Bullaun (An Ballán) , Bullaun Civil Parish, Barony of Loughrea, Co. Galway
- Bullaun (An Ballán) , Kilmoylan Civil Parish, Barony of Clare, Co. Galway
- Bullaunagh (Ballánach) , Kilthomas Civil Parish, Barony of Kiltartan, Co. Galway
- Bullaunagh (Ballánach) , Ardrahan Civil Parish, Barony of Loughrea, Co. Galway
- Bullock Island, Ardcarn Civil Parish, Barony of Boyle, Co. Roscommon
- Bunagarraun (Muine an Ghearráin) , Kilbennan Civil Parish, Barony of Dunmore, Co. Galway
- Bunanraun (Muine Ánráin) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Bunatober (Bun an Tobair) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Bundorragha (Bun Dorcha) , Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Bundouglas (Bun Dubhglaise) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Bunnaconeen (Bun an Choinín) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Bunnafollistran (Muine Feileastran) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Bunnagippaun (Bun na gCeapán) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Bunnaglass (Bun na gClas) , Co. Galway
- Bunnahevelly Beg (Bun na hAibhle Beag) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Bunnahevelly More (Bun na hAibhle Mór) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Bunnahown (Bun na hAbhann) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Bunnakill (Bun an Choill) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Bunnasillagh (Muine Saileach) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Bunnasrah (Bun an tSraithe) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Bunnaviskaun (Bun a' Mhioscáin) , Ross Civil Parish, Barony of Ross, Co. Galway
- Bunoghanaun (Bun Fhothannán) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Bunowen (Bun Abhann) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Bunowenbeg (Bun Abhann Beag) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Bunowenmore (Bun Abhann Mór) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Bunscanniff (Bun Scainimh) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Burgage More (Burgáiste Mór) , Burgage Civil Parish, Barony of Lower Talbotstown, Co. Wicklow
- Burnt Island (An tOileán Dóite) , Kilbelfad Civil Parish, Barony of Tirawley, Co. Mayo
- Burr Island, Cong Civil Parish, Barony of Ross, Co. Galway
- Burroge (An Bhorróg) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Burroge (An Bhorróg) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Bushfield (Gort na Sceiche) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Bushfield (Páirc na Sceiche) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Bush Island (Oileán na Sceiche) , Addergoole Civil Parish, Barony of Tirawley, Co. Mayo
- Bush Island, Cashel Civil Parish, Barony of Rathcline, Co. Longford
- Bush Island (Oileán na Sceiche) , Robeen Civil Parish, Barony of Kilmaine, Co. Mayo
- Bush Island, Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Bushy Island, Rathcline Civil Parish, Barony of Rathcline, Co. Longford
- Bushypark (Páirc na Sceach) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Caher (An Chathair) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Caher (An Chathair) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Caher (Cathair) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Caheradangan (Cathair an Daingin) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Caheradine (Cathair an Daingin) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Caherakeeny (Cathair an Chaonaigh) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Caherakilleen (Cathair an Chillín) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Caheraloggy East (Cathair an Langaigh Thoir) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Caheraloggy West (Cathair an Langaigh Thiar) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Caherapheepa (Cathair an Phíopa or Cathair a Phíopa) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Caherateemore North (Cathair an Tí Mhóir Thuaidh) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Caherateemore South (Cathair an Tí Mhóir Theas) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Caherateige (Cathracha Thaidhg) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Caheratrim (Cathair an Troim) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Caheratrim (Cathair an Troim) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Caheravoley (Cathair Dhá Bhuaile) , Kilmoylan Civil Parish, Barony of Clare, Co. Galway
- Caherawoneen North (Cathair an Mhóinín Thuaidh) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Caherawoneen South (Cathair an Mhóinín Theas) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Caherbrian (Cathair Bhriain) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Caherbriskaun (Cathair Bhrioscáin) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Caherbroder (Cathair Bhruadair) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Caherbulligin (Cathair Bhoilgín) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Cahercarney (Cathair Chearnaigh) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Cahercon (Cathair Chonnaidh) , Killinny Civil Parish, Barony of Kiltartan, Co. Galway
- Cahercormick (Cathair Chormaic) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Cahercrea East (Cathair Chré Thoir) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Cahercrea West (Cathair Chré Thiar) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Cahercrin (Cathair Chruinn) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Caherdaly (Cathair Uí Dhálaigh) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Caherduff (An Chathair Dhubh) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Caherduff (An Chathair Dhubh) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Cahererillan (Cathair Oirealláin) , Killinny Civil Parish, Barony of Kiltartan, Co. Galway
- Caherfinesker (Cathair Fhinneiscreach) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Caherfurvaus (Cathair Fhormháis) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Cahergal (An Chathair Gheal) , Cargin Civil Parish, Barony of Clare, Co. Galway
- Cahergal (An Chathair Gheal) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Cahergal (An Chathair Gheal) , Ross Civil Parish, Barony of Ross, Co. Galway
- Caherglassaun (Cathair Ghlasáin) , Ardrahan Civil Parish, Barony of Kiltartan, Co. Galway
- Caherglassaun (Cathair Ghlasáin) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Cahergowan (Cathair Ghabhann) , Baile Chláir Civil Parish, Barony of Dunkellin, Co. Galway
- Caherhenryhoe (Cathair Éinrí Sheoighe) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Caherhugh (Cathair Aodha) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Caher Island, Inishturk Civil Parish, Barony of Murrisk, Co. Mayo
- Caherkelly (Cathair Cheallaigh) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Caherkinmonwee (Cathair Chinn Mhaonmhaí) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Caherlavine (Cathair Fhlaithimhín) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Caherlavine (Cathair Fhlaithimhín) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Caherlea (An Chathair Liath) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Caherlea (An Chathair Liath) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Caherlea (An Chathair Liath) , Baile Chláir Civil Parish, Barony of Dunkellin, Co. Galway
- Caherlinny (Cathair Linne) , Killinan Civil Parish, Barony of Loughrea, Co. Galway
- Caherlissakill (Cathair Lios an Choill) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Caherlustraun (Cathair Loistreáin) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Cahermacanally (Cathair Mhic an Fhailígh) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Cahermaculick (Cathair Mhic Uillic) , Moorgagagh Civil Parish, Barony of Kilmaine, Co. Mayo
- Cahermore (An Chathair Mhór) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Cahermore (An Chathair Mhór) , Ardrahan Civil Parish, Barony of Kiltartan, Co. Galway
- Cahermorris (Cathair Mhuiris or Cathair Mhuiríosa) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Cahernabrock (Cathair na mBroc) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Cahernagarry (Cathair na nGarraí) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Cahernagormuck (Cathair na gCormac) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Cahernaheeny (Cathair na hAoine) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Cahernahoon (Cathair na hUamhan) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Cahernalee (Cathair na Lao) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Cahernalinsky (Cathair Loinscigh) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Cahernaman (Cathair na mBan) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Cahernamona (Cathair na Móna) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Cahernamuck East (Cathair na Muc Thoir) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Cahernamuck West (Cathair na Muc Thiar) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Cahernaran Island (Oileán Chathair na Reann) (aka Cahernaran) , Oughaval Civil Parish, Barony of Murrisk, Co. Mayo
- Cahernashilleeny (Cathair na Silíní) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Caheronaun (Cathair Fhothannáin) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Caheronaun (Cathair Fhothannáin) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Caherpeak East (Cathair Pléac Thoir or Cathair Péic Thoir) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Caherpeak West (Cathair Pléac Thiar or Cathair Péic Thiar) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Caherrevagh and Cloonnameeltoge (An Chathair Riabhach agus Cluain na Míoltóg) , Kilmainemore Civil Parish, Barony of Kilmaine, Co. Mayo
- Caherroyn (Cathair Ruaín) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Caherskeehaun (Cathair Sciatháin) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Cahertinny (Cathair Thine) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Caherwalter (Cathair Uatéir) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Caherweelder (Cathair Mhaoilir) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Calf Island, Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Calf Island (Oileán an Ghamhna) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Calf Island (Oileán na nGamhna) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Calf Island (Oileán An Ghamhma) , Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Calf Island East, Aghadown Civil Parish, Barony of West Carbery (East Division), Co. Cork
- Calf Island Middle, Skull Civil Parish, Barony of West Carbery (West Division), Co. Cork
- Calf Island West, Skull Civil Parish, Barony of West Carbery (West Division), Co. Cork
- Callancruck (Caladh an Chnoic) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Callatra (Calataire) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Callow (Caladh) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Callow (An Caladh) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Callow Beg (An Caladh Beag) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Callowfinish (Caladh Mhaínse) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Callow More (An Caladh Mór) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Callownamuck (Caladh na Muc) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Caltragh (An Chealtrach) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Caltragh (An Chealtrach) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- Caltragh (An Chealtrach) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Caltragh (An Chealtrach) , Killower Civil Parish, Barony of Clare, Co. Galway
- Caltragh (An Chealtrach) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Caltragh (An Chealtrach) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Caltraghbreedy (Cealtrach Bhríde) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Caltralea (An Chealtrach Liath) , Kilgerrill Civil Parish, Barony of Clonmacnowen, Co. Galway
- Camcloon (Camchluain) , Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Cammanagh (An Camanach) , Ross Civil Parish, Barony of Ross, Co. Galway
- Camus (Camas) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Camus Eighter (Camus Íochtair) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Camus Oughter (Camus Uachtair) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Canal and Banks, St Peter's (part) Civil Parish, Barony of Athlone, Co. Roscommon
- Cangarrow (Ceann Garbh) , Ross Civil Parish, Barony of Ross, Co. Galway
- Cankilly (Ceann na Coille) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Cannaver Island, Cong Civil Parish, Barony of Ross, Co. Galway
- Canower (Ceann Iubhair) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Canrawer East (Ceann Ramhar Thoir) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Canrawer West (Ceann Ramhar Thiar) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Canteeny (Na Caintíní) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Caorán Beag (Caorán Beag) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Caorán na gCearc Thuaidh (Caorán na gCearc Thuaidh) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Capel Island (Oileán an Cháplaigh) , Kilmacdonogh Civil Parish, Barony of Imokilly, Co. Cork
- Capira (Ceapaigh Oighre) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Cappacasheen (Ceapaigh Chaisín) , Killinny Civil Parish, Barony of Kiltartan, Co. Galway
- Cappacorcogue (Ceapach Chorcóige Thiar) (aka Cappacorcogue West) , Cong Civil Parish, Barony of Ross, Co. Galway
- Cappacuilla (Ceapach Choille) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Cappacur (Ceapaigh an Churraigh) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Cappagarriff (An Cheapach Gharbh) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Cappagh (An Cheapach) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Cappagh (An Cheapach) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cappagh (Na Ceapacha) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Cappagh (An Cheapach) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Cappagh (An Cheapach) , Kilgerrill Civil Parish, Barony of Kilconnell, Co. Galway
- Cappagh (An Cheapach) , Tiranascragh Civil Parish, Barony of Longford, Co. Galway
- Cappaghbeg (An Cheapach Bheag) , Killinny Civil Parish, Barony of Kiltartan, Co. Galway
- Cappaghcon (Ceapaigh an Chonnaidh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cappaghconbeg (Ceapaigh an Chonnaidh Beag) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cappaghcon East (Ceapaigh an Chonnaidh Thoir) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cappaghcon West (Ceapaigh an Chonnaidh Thiar) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cappaghduff West (An Cheapaigh Dhuibh Thiar) , Ballyovey Civil Parish, Barony of Carra, Co. Mayo
- Cappaghmore (An Cheapach Mhór) , Killinny Civil Parish, Barony of Kiltartan, Co. Galway
- Cappaghmoyle (An Cheapach Mhaol) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Cappaghnanool (Ceapach na nÚll) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Cappagh North (An Cheapach Thuaidh) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Cappaghoosh (Ceapach Chuais) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Cappagh South (An Cheapach Theas) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Cappakeela (Na Ceapacha Caola) , Tiranascragh Civil Parish, Barony of Longford, Co. Galway
- Cappaleitrim, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Cappaluane (Ceapaigh an Leamháin) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Cappanabornia (Ceapach na Bórnia) , St Nicholas Civil Parish, Barony of Galway, Co. Galway
- Cappanacush Island, Templenoe Civil Parish, Barony of Dunkerron South, Co. Kerry
- Cappanaghtan (Ceapach Neachtain) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Cappanalaurabaun (Ceapach na Lára Báine) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Cappanapisha North (Ceapach na Pise Thuaidh) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Cappanapisha South (Ceapach na Pise Theas) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Cappanasruhaun (Ceapach na Sruthán) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Cappanaveagh (Ceapach na bhFiach) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Cappanraheen (Ceapaigh an Ráithín) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Cappantogher, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Cappard Demesne (An Cheapach Ard) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Cappasallagh (An Cheapach Shalach) , Kilmalinoge Civil Parish, Barony of Longford, Co. Galway
- Cappataggle (Ceapaigh an tSeagail) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Cappavarna (Ceapaigh Bhearna) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Cappaveha (Ceapach Bheithe) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Cappayuse, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Caranavoodaun (Carnán an Bhuadáin) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Caraun (An Cárán or Baile Anraí nó An Cárán) (aka Ballyhenry) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Caraun (An Cárán) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Caraun (An Cárán) , Monivea Civil Parish, Barony of Clare, Co. Galway
- Caraun Beg (An Cárán Beag) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Caraunduff (An Carn Dubh) , Kilmeen Civil Parish, Barony of Leitrim, Co. Galway
- Caraunduff (An Cárán Dubh) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Caraunkeelwy (Cárán Caolbhaí) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Caraun More (An Cárán Mór) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Cargin (An Carraigín) , Cargin Civil Parish, Barony of Clare, Co. Galway
- Carheen (An Caithrín) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Carheenadiveane (Caithrín an Duibhéin) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Carheenard (An Chaithrín Árd) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Carheendoo (An Caithrín Dubh) , Leitrim Civil Parish, Barony of Leitrim, Co. Galway
- Carheenlea (An Caithrín Liath) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Carheennascovoge (Caithrín na Scamhóg) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Carheens (Na Caithríní) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Carheens (An Caithrín) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Carheeny (Na Caithríní) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Carheeny (Na Caithríní) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Carheenybaun (Na Caithríní Bána) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Carheenybeg (Na Caithríní Beaga) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Carheenymore (Na Caithríní Móra) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Carhoon (An Cheathrúin) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Carhoon (An Cheathrúin) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Carna (Carna) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Carnakelly (Ceathrú na Coille) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Carnakelly North (Ceathrú na Coille Thuaidh) , Kiltullagh Civil Parish, Barony of Kilconnell, Co. Galway
- Carnakelly South (Ceathrú na Coille Theas) , Kiltullagh Civil Parish, Barony of Kilconnell, Co. Galway
- Carnanthomas (Carnán Thomáis) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Carnaun (An Carnán) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Carnaun (An Carnán) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Carnmore (An Carn Mór) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Carnmore East (An Carn Mór Thoir) , Baile Chláir Civil Parish, Barony of Clare, Co. Galway
- Carra (Cartha) , Killoran Civil Parish, Barony of Leitrim, Co. Galway
- Carra (Cartha) , Killaan Civil Parish, Barony of Loughrea, Co. Galway
- Carragh (Carrach) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Carraghadoo (Na Cathracha Dubha) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Carraghy (Na Cathracha) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Carra Island (Oileán na Cara) (aka Illaunacarra) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Carraunrevagh (An Cárán Riabhach) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Carrickarone (Carraig an Róin) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Carrickavea, Inishturk Civil Parish, Barony of Murrisk, Co. Mayo
- Carrickawilt Island (Carraig an Mhoilt) , Kilmore Civil Parish, Barony of Erris, Co. Mayo
- Carrickboorla, Inishturk Civil Parish, Barony of Murrisk, Co. Mayo
- Carrick East (An Charraig Thoir) , Cong Civil Parish, Barony of Ross, Co. Galway
- Carrickfia (Carraig Fia) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Carricklea (Carraig Liath or Liathcharraig) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Carrick Middle (An Charraig Láir) , Cong Civil Parish, Barony of Ross, Co. Galway
- Carrickmore (An Charraig Mhór) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Carricknaglamph Island (Carraig na gClamh) , Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Carricknaheelia Island, Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Carrick West (An Charraig Thiar) , Cong Civil Parish, Barony of Ross, Co. Galway
- Carriff Island, Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Carrigacurra, Boystown Civil Parish, Barony of Lower Talbotstown, Co. Wicklow
- Carrigeenaskibbole Island (Carraigín a' Sciobóil) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Carrigeendavoe Island (Carraigín Dá Bhó) , Ballinchalla Civil Parish, Barony of Kilmaine, Co. Mayo
- Carrigeen East (An Carraigín Thoir) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Carrigeenfadda Island, Kilmacowen Civil Parish, Barony of Carbury, Co. Sligo
- Carrigeengare Island, Kilmacowen Civil Parish, Barony of Carbury, Co. Sligo
- Carrigeenglass Island North (aka Carrigeenglass North) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Carrigeen Island Middle (An Charraigín Láir) (aka Carrigeen Middle) , Ballinchalla Civil Parish, Barony of Kilmaine, Co. Mayo
- Carrigeennakeelagh (Carraigín Caolach) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Carrigeen West (An Carraigín Thiar) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Carrigfadda (An Charraig Fhada) , Barony of Corkaguiny, Co. Kerry
- Carrowbaun, Oughaval Civil Parish, Barony of Murrisk, Co. Mayo
- Carrowbaun (An Cheathrú Bhán) , Lickerrig Civil Parish, Barony of Loughrea, Co. Galway
- Carrowbaun (An Cheathrú Bhán) , Cong Civil Parish, Barony of Ross, Co. Galway
- Carrowbaun East (An Cheathrú Bhán Thoir) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Carrowbaun West (An Cheathrú Bhán Thiar) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Carrowbeg (An Cheathrú Bheag) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Carrowbeg North (An Cheathrú Bheag Thuaidh) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Carrowbeg North (An Cheathrú Bheag Thuaidh) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Carrowbeg South (An Cheathrú Bheag Theas) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Carrowbeg South (An Cheathrú Bheag Theas) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Carrowbrowne (Ceathrú Bhrún) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Carrowclogh (An Cheathrú Chlochach) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Carrowconlaun (Ceathrú Uí Chonalláin) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Carrowcreevanagh (Ceathrú Chraoibhíneach) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Carrowcrin (An Cheathrú Chruinn) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Carrowgarriff (An Cheathrú Gharbh) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Carrowgarriff (An Cheathrú Gharbh) , Cong Civil Parish, Barony of Ross, Co. Galway
- Carrowgarriff North (An Cheathru Gharbh Thuaidh) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Carrowgarriff South (An Cheathru Gharbh Theas) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Carrowhekeen (Ceathrú Shéicín) , Cong Civil Parish, Barony of Ross, Co. Galway
- Carrowholla (Ceathrú Thola) , Ballymacward Civil Parish, Barony of Kilconnell, Co. Galway
- Carrowkeel (An Cheathrú Chaol) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Carrowkeel (An Cheathrú Chaol) , Leitrim Civil Parish, Barony of Leitrim, Co. Galway
- Carrowkeel (An Cheathrú Chaol) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Carrowkilleen (Ceathrú an Choillín) , Killinny Civil Parish, Barony of Kiltartan, Co. Galway
- Carrowlustraun (Ceathrú an Loistreáin) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Carrowmanagh (An Cheathrú Mheánach) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Carrowmanagh (An Cheathrú Mheánach) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Carrowmaneen (Ceathrú Mhainchín) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Carrowmoneash (Ceathrú na Manaoise) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Carrowmore (An Cheathrú Mhór) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- Carrowmore (An Cheathrú Mhór) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Carrowmore (An Cheathrú Mhór or Ceathrú Mór na mBodach) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Carrowmore (An Cheathrú Mhór) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Carrowmore (An Cheathrú Mhór) , Barony of Dunkellin, Co. Galway
- Carrowmore (An Cheathrú Mhór) , Kilmeen Civil Parish, Barony of Leitrim, Co. Galway
- Carrowmore (An Cheathrú Mhór or Ceathrú Mór na mBodach) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Carrowmore (An Cheathrú Mhór) , Bullaun Civil Parish, Barony of Loughrea, Co. Galway
- Carrowmore (An Cheathrú Mhór) , Kilmainemore Civil Parish, Barony of Kilmaine, Co. Mayo
- Carrowmore (An Cheathrú Mhór) , Moorgagagh Civil Parish, Barony of Kilmaine, Co. Mayo
- Carrowmoreknock (Ceathrú Mhór an Chnoic) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Carrowmore West (An Cheathrú Mhór Thiar) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Carrowmunna (Ceathrú Mhuineach) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Carrownacreggaun (Ceann an Chreagáin) , Drumacoo Civil Parish, Barony of Dunkellin, Co. Galway
- Carrownacroagh (Ceathrú Na Cruaiche) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Carrownafinnoge (Ceathrú na Feannóige) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Carrownageeha (Ceathrú na Gaoithe) , Liskeevy Civil Parish, Barony of Dunmore, Co. Galway
- Carrownaglogh (Ceathrú na gCloch) , Killimordaly Civil Parish, Barony of Athenry, Co. Galway
- Carrownagower (Ceathrú na gCorr) , Lickerrig Civil Parish, Barony of Dunkellin, Co. Galway
- Carrownaherick East (Ceathrú na hÉirice Thoir) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Carrownaherick West (Ceathrú na hÉirice Thiar) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Carrownakib (Ceathrú na Cibe) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Carrownalurgan, Oughaval Civil Parish, Barony of Murrisk, Co. Mayo
- Carrownamaddra (Ceathrú na Madra) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Carrownamona (Ceathrú na Móna) , Ardrahan Civil Parish, Barony of Kiltartan, Co. Galway
- Carrownamorrissy (Ceathrú na Muiríosach) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Carrownavohanaun (Ceathrú na bhFothannán) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Carrowndulla (Ceathrú an Dola) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Carrownea Upper (Ceathrú an Fheá Uachtair) , Ballymacward Civil Parish, Barony of Kilconnell, Co. Galway
- Carrownlough (Ceathrú an Locha) , Crossboyne Civil Parish, Barony of Clanmorris, Co. Mayo
- Carrownrooaun (Ceathrú an Ruáin or Ceathrú an Ruadháin) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Carrowntemple (Ceathrú an Teampaill) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Carrowntober (Ceathrú an Tobair) (aka Billymore) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Carrowntober (Ceathrú an Tobair) , Abbeygormacan Civil Parish, Barony of Leitrim, Co. Galway
- Carrownturly (Ceathrú an Turlaigh) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Carrownurlaur (Ceathrú an Urláir) , Liskeevy Civil Parish, Barony of Dunmore, Co. Galway
- Carrowoughteragh (An Cheathrú Uachtarach) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Carrowreagh (An Cheathrú Riabhach) , Killimordaly Civil Parish, Barony of Athenry, Co. Galway
- Carrowreagh (An Cheathrú Riabhach) , Fohanagh Civil Parish, Barony of Kilconnell, Co. Galway
- Carrowreagh (An Cheathrú Riabhach) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Carrowreagh East (An Cheathrú Riabhach Thoir) , Abbeyknockmoy Civil Parish, Barony of Tiaquin, Co. Galway
- Carrowreagh West (An Cheathrú Riabhach Thiar) , Abbeyknockmoy Civil Parish, Barony of Tiaquin, Co. Galway
- Carrowrevagh (An Cheathrú Riabhach) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Carrowroe (An Cheathrú Rua) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Carrowroe (An Cheathrú Rua) , Kilcooly Civil Parish, Barony of Leitrim, Co. Galway
- Carrowroe North (An Cheathrú Rua Thuaidh) , Lickerrig Civil Parish, Barony of Athenry, Co. Galway
- Carrowroe South (An Cheathrú Rua Theas) , Lickerrig Civil Parish, Barony of Dunkellin, Co. Galway
- Carrowroe West (An Cheathrú Rua Thiar) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Carrowshanbally (Ceathrú Sheanbhealaigh or Ceathrú an tSean Bhealaigh) , Abbeygormacan Civil Parish, Barony of Leitrim, Co. Galway
- Carrowsteelagh (Ceathrú Stiallach) , Killogilleen Civil Parish, Barony of Loughrea, Co. Galway
- Carta (An Cheárta) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Cartoor (An Cartúr) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Cartoorbeg (Cartúr Beag) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Cartron (An Cartrún) , Killallaghtan Civil Parish, Barony of Clonmacnowen, Co. Galway
- Cartron (An Cartúr) , Kilconla Civil Parish, Barony of Dunmore, Co. Galway
- Cartron (An Cartrún) , Killogilleen Civil Parish, Barony of Loughrea, Co. Galway
- Cartron (An Cartrún) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Cartron (An Cartrún) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Cartron (Cartun) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Cartron (An Cartrún) , Drumacoo Civil Parish, Barony of Dunkellin, Co. Galway
- Cartron (An Cartún) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Cartron (An Cartrún) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Cartron (An Cartún) , Addergoole Civil Parish, Barony of Dunmore, Co. Galway
- Cartron (Cartún) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Cartron (An Cartrún) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Cartron (An Cartún) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Cartron (An Cartrún) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Cartron (An Cartrún) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Cartrondoogan (Cartrún Uí Dhúgáin) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Cartrondoogan (Cartrún Uí Dhúgáin) , Fohanagh Civil Parish, Barony of Kilconnell, Co. Galway
- Cartron (French) (An Cartún (French)) , Kilmainemore Civil Parish, Barony of Kilmaine, Co. Mayo
- Cartron (Kirwan) (An Cartún (Kirwan)) , Kilmainemore Civil Parish, Barony of Kilmaine, Co. Mayo
- Cartronlahan (Cartún Leathan) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Cartron North (An Cartúr Thuaidh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cartronsheela (Cartrún Síle) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- Cartron South (An Cartrún Theas) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cartrontrellick (Cartrún Treileac or Cartrún Trí Leic) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Cashel (Caiseal) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Cashla (Caisle) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Cashla (Caisle) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Cashleen (Caislín) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Castlebin East (Caisleán na Binne Thoir) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Castlebin North (Caisleán na Binne Thuaidh) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Castlebin South (Caisleán na Binne Theas) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Castleboy (An Caisleán Buí) , Killinan Civil Parish, Barony of Loughrea, Co. Galway
- Castlecreevy (Caisleán na Craobhaí) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Castledaly (An Corrbhaile) , Ardrahan Civil Parish, Barony of Loughrea, Co. Galway
- Castle Ellen (Caisleán Eilean) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Castlegar (An Caisleán Gearr) , St Nicholas Civil Parish, Barony of Galway, Co. Galway
- Castlegar (An Caisleán Gearr) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Castlegar East (An Caisleán Gearr Thoir) , Ahascragh Civil Parish, Barony of Killian, Co. Galway
- Castlegar West (An Caisleán Gearr Thiar) , Ahascragh Civil Parish, Barony of Clonmacnowen, Co. Galway
- Castlegrove East (Garrán an Chaisleáin Thoir) , Kilbennan Civil Parish, Barony of Dunmore, Co. Galway
- Castlegrove West (Garrán an Chaisleáin Thiar) , Kilbennan Civil Parish, Barony of Dunmore, Co. Galway
- Castlehacket (Caisleán an Haicéadaigh or Sciathánach) , Killower Civil Parish, Barony of Clare, Co. Galway
- Castle Island (Oileán an Chaisleáin) , Creagh Civil Parish, Barony of West Carbery (East Division), Co. Cork
- Castle Island (Carraig Locha Cé) , Ardcarn Civil Parish, Barony of Boyle, Co. Roscommon
- Castle Island (Oileán an Chaisleáin) , Burriscarra Civil Parish, Barony of Carra, Co. Mayo
- Castle Island (Oileán an Chaisleáin) , Crossmolina Civil Parish, Barony of Tirawley, Co. Mayo
- Castle Island (Oileán a Chaisleáin) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Castlelambert (Caisleán Lampart) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Castlenancy (Béal Átha na nÉan) , Abbeygormacan Civil Parish, Barony of Leitrim, Co. Galway
- Castlepark (Páirc an Chaisleáin) , Isertkelly Civil Parish, Barony of Loughrea, Co. Galway
- Castlequarter (Ceathrú an Chaisleáin) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Castle Quarter (Ceathrú an Chaisleáin) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Castlereagh (An Caisleán Riabhach) , Crossboyne Civil Parish, Barony of Clanmorris, Co. Mayo
- Castletaylor North (Caisleán an Táilliúraigh Thuaidh) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Castletaylor South (Caisleán an Táilliúraigh Theas) (aka Castle Taylor South) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Castletown (Baile an Chaisleáin) , Kilcornan Civil Parish, Barony of Kenry, Co. Limerick
- Castletown (Baile an Chaisleáin) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Castletown (Baile an Chaisleáin) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Castletown (Baile An Chaisleáin) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Castleturvin (Caisleán Tuirbhin) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Catherine's Isle, Clondahorky Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Cave (An Chéibh) , Killower Civil Parish, Barony of Clare, Co. Galway
- CD (An Ruán Mór) , Baile Chláir Civil Parish, Barony of Clare, Co. Galway
- Ceapach na gCapall (Ceapach na gCapall) (aka Petersburgh) , Ross Civil Parish, Barony of Ross, Co. Galway
- Ceapaigh na Creiche (Ceapaigh na Creiche) , Ballinchalla Civil Parish, Barony of Ross, Co. Mayo
- Chain Island (Oileán Sheáin) , Crossmolina Civil Parish, Barony of Tirawley, Co. Mayo
- Chapel Island (Oileán an Teampaill) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Chapel Island, Kilmocomoge Civil Parish, Barony of Bantry, Co. Cork
- Chapel Island Little, Kilmocomoge Civil Parish, Barony of Bantry, Co. Cork
- Chapelpark (Páirc an tSéipéil) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Chelsea (Chelsea) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Church Island (Oileán an Teampaill) , Ballintober Civil Parish, Barony of Carra, Co. Mayo
- Church Island (Inis Mac nÉirín) , Boyle Civil Parish, Barony of Boyle, Co. Roscommon
- Church Island, Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Church Island (Inis Mór) , Calry Civil Parish, Barony of Carbury, Co. Sligo
- Claddaghduff (Cladach Dubh) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Cladhnach (Cladhnach) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Claggan (An Cloigeann) , Cong Civil Parish, Barony of Ross, Co. Galway
- Claggernagh East (Clagarnach Thoir) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Claggernagh West (Clagarnach Thiar) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Clamperpark (Páirc an Chlampair) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Clarary, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Clarary (Cláraire) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Clare (An Clár) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Claregalway (Baile Chláir or Baile Chlár na Gaillimhe) , Baile Chláir Civil Parish, Barony of Clare, Co. Galway
- Claremadden (Clár Uí Mhadaín) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Claremount (An Clár Mór) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Claretuam (Béal Chláir or Béal Chlár Thuama) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Clashaganny (Clais an Ghainimh) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Claureen (An Cláirín) , Kilbennan Civil Parish, Barony of Dunmore, Co. Galway
- Clawinch, Cashel Civil Parish, Barony of Rathcline, Co. Longford
- Cleaghbeg, Creagh Civil Parish, Barony of Moycarn, Co. Galway
- Cleaghgarve, Creagh Civil Parish, Barony of Moycarn, Co. Galway
- Cleaghmore (Cliathach Mhór) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Cleenillaun (Claonoileán) , Cong Civil Parish, Barony of Ross, Co. Galway
- Cleggan (An Cloigeann) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Clerhaun (An Cloichreán) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Clifden Demesne (Diméin an Chlocháin) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Clifden (Townland Of) (An Clochán) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Cliff Island (Oileán Alla) , Kilbelfad Civil Parish, Barony of Tirawley, Co. Mayo
- Clochar Mór (Clochar Mór) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Clochar na gCon (Clochar na gCon) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Clogh (An Chloch or Cloch na Collie) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Cloghagalla Eighter (Na Clocha Geala Íochtair) , Aughrim Civil Parish, Barony of Clonmacnowen, Co. Galway
- Cloghagalla Oughter (Na Clocha Geala Uachtair) , Aughrim Civil Parish, Barony of Clonmacnowen, Co. Galway
- Cloghalahard (Cloch an Leath Árd) , Stradbally Civil Parish, Barony of Dunkellin, Co. Galway
- Cloghanboy (Homan) (An Clochán Buí (Homan)) , St Mary's Civil Parish, Barony of Brawny, Co. Westmeath
- Cloghanower (Clock an Uabhair) , Killeany Civil Parish, Barony of Clare, Co. Galway
- Clogharevaun (Cloch an Riabháin) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Clogharoasty (Cloch an Róistigh) , Kilmeen Civil Parish, Barony of Leitrim, Co. Galway
- Cloghastookeen (Cloch an Stuaicín) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Cloghatanna (Cloch an tSonnaigh) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Cloghatiskey (Cloch an Choiscthe) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Cloghaun (An Clochán) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Cloghaun (An Clochán) , Baile Chláir Civil Parish, Barony of Clare, Co. Galway
- Cloghaun (An Clochán) , Killinan Civil Parish, Barony of Loughrea, Co. Galway
- Cloghaunard (Clochán Árd) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Cloghballymore (Chocj) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Cloghboley (An Chlochbhuaile) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Cloghbrack (An Chloch Bhreac) , Kilmeen Civil Parish, Barony of Leitrim, Co. Galway
- Cloghbrack Lower (An Chloch Bhreac Íochtair) , Ross Civil Parish, Barony of Ross, Co. Galway
- Cloghbrack Middle (An Chloch Bhreac Láir) , Ross Civil Parish, Barony of Ross, Co. Galway
- Cloghbrack Upper (An Chloch Bhreac Uachtair) , Ross Civil Parish, Barony of Ross, Co. Galway
- Clogher (An Clochar) , Cong Civil Parish, Barony of Ross, Co. Galway
- Cloghernalaura (Clochar na Lára) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Cloghleagh (Cnoc an tSaileáin) , KIlbride Civil Parish, Barony of Lower Talbotstown, Co. Wicklow
- Cloghmore South (An Chloch Mór Theas) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Cloghmoyne (Cloch Mhaighne) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Cloghnakeava (Cloch na Céibhe) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Cloghroak (Cloch an Chrócaigh) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Cloghscoltia (Cloch Scoilte) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Cloghvoley (An Chlochbhuaile) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Clonbrusk (Cluain Bhorraisc) , St Mary's Civil Parish, Barony of Brawny, Co. Westmeath
- Clonco (Cluain Có) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cloncollog (Cluain Calga) , Kilbride Civil Parish, Barony of Ballycowan, Co. Offaly
- Clonfert (Cluain Fearta) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Clonfert Demesne (Cluain Fearta) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Clonfert Demesne Bog (Móin Chluain Fearta) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Clonfert North (Cluain Fearta Thuaidh) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Clonfert South (Cluain Fearta Theas) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Clonoghil Upper (Cluain Achaille Uachtarach) , Birr Civil Parish, Barony of Ballybritt, Co. Offaly
- Cloon (An Chluain) , Baile Chláir Civil Parish, Barony of Dunkellin, Co. Galway
- Cloon (Cluan) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Cloon (Cluain) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Cloon (Cluain Ó Maonagáin) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Cloonabinnia (Cluain Na Binne) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Cloonacalleen (Cluain Caillín) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Cloonacalleen (Cluain Caillín) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Cloonacastle (Cluain an Chaisleáin) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Cloonacauneen (Cluain Mhic Cáinín) , Baile Chláir Civil Parish, Barony of Dunkellin, Co. Galway
- Cloonacauneen (Cluain Mhic Cáinín) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Cloonagark (Cluain na gCearc) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Cloonagh (Cluanach or Cluain Each) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Cloonaghbrack, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Cloonaghmore (Cluanach Mhór) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Cloonagower (Cluain Na nGabhair) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Cloonahinch (Cluain na hInse) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Cloonameragaun (Cúil na Méaragán) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- Cloonamore (Cluanach Mhór) , Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Cloonanearla (Cluain an Iarla) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Cloonascragh (Cluain Eascrach) , Clontuskert Civil Parish, Barony of Longford, Co. Galway
- Cloonascragh (Cluain Eascrach) , Kilbennan Civil Parish, Barony of Dunmore, Co. Galway
- Cloonatloukaun (Cluain an tSleabhcáin) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Cloonbanaun (Cluain Beannáin) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Cloonbar (Cluain Barr) , Kilconla Civil Parish, Barony of Dunmore, Co. Galway
- Cloonbeg (Cluain Beag) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Cloonbeg (Cluain Beag) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Cloonbeg (Cluain Beag) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Cloonbeggaun, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Cloonbenes (Cluain Béinéis) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Cloonboo (Cluain Bó) (aka Clonboo) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Cloonbornia (Cluain Boirne) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Cloonbrackna (Cluain Breacnach) , Roscommon Civil Parish, Barony of Ballintober South, Co. Roscommon
- Cloonbrone (Cluain Brón) , Cong Civil Parish, Barony of Ross, Co. Galway
- Cloonbrusk (Cluain Brosc) , Monivea Civil Parish, Barony of Kilconnell, Co. Galway
- Cloonburren (Cluain Boireann) , Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Clooncah (Cluain Catha) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Clooncallis (Cluain Mhic Áilíosa) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Clooncallis (Cluain Mhic Áilíosa) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Clooncana (Cluain Cuanna) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Cloonconabeg (Cluain Cuanna Beag) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Cloonconra (Cluain Conaire) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Clooncree (Cluan Croidhe) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Cloondadauv (Cluain Dá Dhamh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cloondine (Cluain Daighin) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Cloondroon (Cluain Druin) , Addergoole Civil Parish, Barony of Dunmore, Co. Galway
- Cloonederowen (Cluain Idir Dhá Abhainn) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Cloonee (Cluain Aoi) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Clooneen (An Cluainín) , Killeany Civil Parish, Barony of Clare, Co. Galway
- Clooneen (An Cluainín) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Clooneen (An Cluainín) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Clooneen, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Clooneish, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Cloonfad, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Cloonfush (Cluain Fois) , Tuam Civil Parish, Barony of Clare, Co. Galway
- Cloongawnagh (Cluain Gamhnach) , Kilmainemore Civil Parish, Barony of Kilmaine, Co. Mayo
- Clooniff, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Clooniff (Cluain Duibh) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Cloonigny (Cluain Íne) , Kilgerrill Civil Parish, Barony of Clonmacnowen, Co. Galway
- Cloonineen (Cluain na nIníon) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Cloonisle (Cluain Aidhle) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Cloonkea (Cluain Cé) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Cloonkeely (Cluain Caolaigh) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Cloonkeenbeg (Cluain Caoin Beag) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Cloonkeen East (Cluain Caoin Thoir) , Killallaghtan Civil Parish, Barony of Clonmacnowen, Co. Galway
- Cloonkeenmore North (Cluain Caoin Mór Thuaidh) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Cloonkeenmore South (Cluain Caoin Mór Theas) , Monivea Civil Parish, Barony of Kilconnell, Co. Galway
- Cloonkeen West (Cluain Caoin Thiar) , Killallaghtan Civil Parish, Barony of Clonmacnowen, Co. Galway
- Cloonlahan (Eyre) (baile fearainn Cluain Leathan (Eyre)) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Cloonlahan (Geoghegan) (Cluain Leathan (Geoghegan)) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Cloonlee (Cluain Lao) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Cloonleenaun (Cluain Leannáin) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Cloonlooaun (Cluan Lúghain) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Cloonmain (Cluain Meáin) , Killoran Civil Parish, Barony of Leitrim, Co. Galway
- Cloonmore (Cluain Mór) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Cloonmore (An Chluain Mhór) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Cloonmorris (Cluain Mhuirís) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Cloonmoylan (Cluain Maoiláin Beag) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Cloonmoylan (Cluain Maoiláin Mór) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cloonmweelaun (Cluain Maoláin) , Kilconla Civil Parish, Barony of Dunmore, Co. Galway
- Cloonnacartan (Cluain na Ceártan) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Cloonnacross (Cluain na Croise) , Addergoole Civil Parish, Barony of Dunmore, Co. Galway
- Cloonnacusha (Cluain Coise) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Cloonnafunshin (Cluain na Fuinseann) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Cloonnaglasha (Cluain na Glaise) , Kilconla Civil Parish, Barony of Dunmore, Co. Galway
- Cloonnahaha (Cluain na hÁithe) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Cloonnamarve (Cluain na Marbh) , Cong Civil Parish, Barony of Ross, Co. Galway
- Cloonnamaskry (Cluain na Meascraí) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Cloonnasee (Cluain na Saoi) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Cloonnavaddoge (Cluain na bhFeadóg) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Cloonnavarnoge (Cluain na bhFearnóg) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Cloononaghaun (Cluain Onchon) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Cloonoo East (Cluain Uamha Thoir) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Cloonoolish (Cluain Dúlais) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Cloonoon (Cluain Ún) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cloonoo West (Cluain Uamha Thiar) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Cloonprask (Cluain Praisce) , Duniry Civil Parish, Barony of Longford, Co. Galway
- Cloonrane (Cluain Ráin) , Addergoole Civil Parish, Barony of Dunmore, Co. Galway
- Cloonshask, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Cloonshease (Daly) (Cluain na Séasa (Daly)) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Cloonshease (Persse) (Cluain na Seasa (Persse)) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Cloonsheecahill (Cluain Sí Cathail) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Cloonsheen (Cluain Síon) , Kilconla Civil Parish, Barony of Dunmore, Co. Galway
- Cloonteen (An Cluaintín) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Cloonteen (An Cluaintín) , Kilconla Civil Parish, Barony of Dunmore, Co. Galway
- Cloontymweenagh, Inishcaltra Civil Parish, Barony of Tulla Upper, Co. Clare
- Cloonulty, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Cloonyconaun (Cluain Uí Choineáin) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Cloonykeevan (Cluain Uí Chiabháin) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Cloonymorris (Cluain Uí Mhuirís) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Clooshgereen (Cluais Chéirín) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Cloran (An Cloichreán) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Cloverpark (Páirc na Seamar or Páirc a Chleamhair) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Cluidrevagh (An Chlúid Riabhach) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Clybaun (An Claí Bhán) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Clydagh (Claídeach) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Clydagh (Claídeach) , Cargin Civil Parish, Barony of Clare, Co. Galway
- Clynagh Island (Cladhnach) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Cnoc na Gairfine (Cnoc na Gairfine) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Cnoc Na Gréine (Cnoc Na Gréine) , Rahoon Civil Parish, Barony of Moycullen, Co. Galway
- Coarsefield (Sceach Liag) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Coarse Island, Kilbelfad Civil Parish, Barony of Tirawley, Co. Mayo
- Coarse Island, Addergoole Civil Parish, Barony of Tirawley, Co. Mayo
- Coarseparks (An Gort Garbh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cockstown East (Baile na gCoileach Thoir) , Ardrahan Civil Parish, Barony of Kiltartan, Co. Galway
- Cockstown West (Baile na gCoileach Thiar) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Coill an tSíáin (Coill an tSíáin) , Ballinrobe Civil Parish, Barony of Ross, Co. Mayo
- Coldwood (Fuarchoill) , Athenry Civil Parish, Barony of Dunkellin, Co. Galway
- Colesgrove (Garrán Niocóil) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Collan Beg (aka Collan Beg Island) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Collegeland, St Mary's Civil Parish, Barony of Brawny, Co. Westmeath
- Colmanstown (Baile Uí Chlúmháin) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Colmanstown (Baile Uí Chlúmháin) (aka Colemanstown) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Colt Island (Oileán an Bhromaigh) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Commeen (An Coimín) , Kilteevoge Civil Parish, Barony of Raphoe South, Co. Donegal
- Commons (An tImreas) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Commons (An Coimín) , Kilteskill Civil Parish, Barony of Loughrea, Co. Galway
- Commons (An Coimín) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Commons East (An Coimín Thoir) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Commons West (An Coimín Thiar) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cong North (Conga Thuaidh) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Cong South (Conga Theas) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Conicar (An Coinicear) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Conicar (An Coinicéar) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Connet (Conalt) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Conor's Island (Oileán Uí Chonchubhair) , Cong Civil Parish, Barony of Ross, Co. Galway
- Conors Island, Burriscarra Civil Parish, Barony of Carra, Co. Mayo
- Conorspark (Páirc Chonchúir) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Coogypark, Inishcaltra Civil Parish, Barony of Tulla Upper, Co. Clare
- Coolacloy (Cúl a Chloidhe) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Coolacurn North (Cúil an Choirn Thuaidh) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Coolacurn South (Cúil an Choirn Theas) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Coolagarraun (Cúil an Gharráin) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Coolagh (Cúil Each) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Coolagh (Na Cualacha) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Coolagh (Cúlach) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Coolagh (Cúil Each) , St Nicholas Civil Parish, Barony of Galway, Co. Galway
- Coolanillaun (Cúl An Oileáin) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Coolaran (Cúl) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Coolavally (Cúl an Bhaile) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Coolbaun (An Chúil Bhán) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Coolbaun West (An Chúil Bhán Thiar) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Coolbeg (An Chúil Bheag) , Clontuskert Civil Parish, Barony of Longford, Co. Galway
- Coolcarta East (Cúil Chearta Thoir) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Coolcarta West (Cúil Chearta Thiar) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Coolcholly (Cúil Chalbhaigh) , Kilbarron Civil Parish, Barony of Tirhugh, Co. Donegal
- Coolderry, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Coolderry, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Cooldorragha (An Chúil Dorcha) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Cooldorragha, Inishcaltra Civil Parish, Barony of Tulla Upper, Co. Clare
- Coole Demesne (An Chúil) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Cooleeny (Na Cúilíní) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Cooleeny East (Na Cúilíni Thoir) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Cooleeny West (Na Cúilíni Thiar) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Coolfin (Cúil Fhinn) , Ardrahan Civil Parish, Barony of Kiltartan, Co. Galway
- Coolfin (Cúl Fionn) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Coolin (Cualann) , Ross Civil Parish, Barony of Ross, Co. Galway
- Coollicknalea (Cúil Leic na Liath) , Addergoole Civil Parish, Barony of Dunmore, Co. Galway
- Coolnageeragh (Cúil na gCaorach) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Coololla (Cúil Ola) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- Coolpowra (Cúil Phóire) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Coolraugh (Cúlrach) , Lickerrig Civil Parish, Barony of Dunkellin, Co. Galway
- Coolsrahra (Cúl Sraithe) , Stradbally Civil Parish, Barony of Dunkellin, Co. Galway
- Coolsrahra (Cúl Sraithe) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Cooltymurraghy (Cuil Tí Murchú) , Killallaghtan Civil Parish, Barony of Clonmacnowen, Co. Galway
- Cooltymurraghy (Cúil Tí Murchú) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- Coolumber, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Cooracurkia (Cuar an Choirce) , Abbeygormacan Civil Parish, Barony of Leitrim, Co. Galway
- Coorbaun (An Chúil Bhán) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Coorinch, Meelick Civil Parish, Barony of Longford, Co. Galway
- Coosaun (Cuasán) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Cooslughoga (Cuas Luchóige) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Coos North (An Cuas Thuaidh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Coos South (An Cuas Theas) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Coppanagh (Copanach) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Coppenagh (Copanach) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Corbally (An Corrbaile) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Corbally (An Corrbhaile) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Corbally Beg (An Corrbhaile Beag) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Corbally (Hogan) (An Corrbhaile (Hogan) or An Corrbhaile Hogan) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Corbally More (An Corrbhaile Mór) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Corballymore and Camgort (An Corrbhaile Mór agus an Camghort) , Donanaghta Civil Parish, Barony of Longford, Co. Galway
- Corbally North (An Corrbhaile Thuaidh) , Kilmoylan Civil Parish, Barony of Clare, Co. Galway
- Corbally South (An Corrbhaile Theas) , Kilmoylan Civil Parish, Barony of Clare, Co. Galway
- Corbaun (An Chorr Bhán) , Kilcooly Civil Parish, Barony of Leitrim, Co. Galway
- Corboley (An Chorr Bhuaile) (aka Corboley (Morgan)) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Corboley Lynch (Cor Bhuaile Loingsigh) (aka Corboley (Lynch)) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Corcullen (Corr Chuilinn) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Corcullen (Corr Chuilinn) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Cordarragh (Corr Dharach) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Cordroon (Corr Drún) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Corgarve (An Chorr Gharbh) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Corillaun (An Corroileán) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Corker (An Charcair) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Cormacuagh East (Corr Mhic Dhuach Thoir) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Cormacuagh West (Corr Mhic Dhuach Thiar) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Cormick (Ceathrú Mhic Dhúg) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Cormick (Ceathrú Mhic Dhúg) , Duniry Civil Parish, Barony of Longford, Co. Galway
- Cornacartan (Corr na Ceártan) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Cornamona (Townland of) (Cor na Móna) , Cong Civil Parish, Barony of Ross, Co. Galway
- Cor na Rón (Cor na Rón) (aka Cornarone) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Cornaveagh (Corr na bhFiach) , Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Corr (An Comhar) , Kilmalinoge Civil Parish, Barony of Longford, Co. Galway
- Corrabaun (An Chora Bhán) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Corrabaun (An Chora Bhán) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Corrabaun (An Chora Bhán) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Corrafaireen (Cora Phiairín) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Corragh Island, Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Corralea (An Chora Liath) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Corralea (Cora Liath) , Tuam Civil Parish, Barony of Clare, Co. Galway
- Corrandrum (Cor an Droma) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Corrandrum (Cor an Droma) , Kilmoylan Civil Parish, Barony of Clare, Co. Galway
- Corrandulla (Cor An Dola) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Corraneena (Corr an Aonaigh) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Corranellistrum (Corr an Fheileastraim) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Corrantarramud (Corr an Tearmaid) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Correen (An Coirrín) , Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Correenbeg, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Corry (An Chora) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Corry Island (Oileán na Coradh) , Inishmagrath Civil Parish, Barony of Drumahaire, Co. Leitrim
- Corskeagh (Daly) (Corrsceachach (Daly)) , Ballymacward Civil Parish, Barony of Tiaquin, Co. Galway
- Corskeagh (Trench) (Corrsceachach (Trench)) , Ballymacward Civil Parish, Barony of Tiaquin, Co. Galway
- Cosmona (Cois Móna) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Cosmona (Cois Móna) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Cossaun (An Cosán) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Cossaunaclamper (Cosán an Chlampair) , Kilteskill Civil Parish, Barony of Leitrim, Co. Galway
- Costello's Island (Oileán an Choistealaigh) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Costello's-park (Páirc an Choistealaigh) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Coteenty (Na Coitiantí) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Cottage (Cotáiste) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Cottage Island (Inis Cilleacháin) , St. John's Civil Parish, Barony of Carbury, Co. Sligo
- Couravoughil (Cobhar a Bhuachaill) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Courhoor (Corthuir) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Cournageeha (Corr na Gaoithe) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Cow Island, Ballinrobe Civil Parish, Barony of Kilmaine, Co. Mayo
- Cow Island (Oileán Bó) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Coxtown (Corr na gCoileach) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Craig's Islands, Aughnish Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Cranberry Island, Tullyfern Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Cranberry Island, Kilmacrenan Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Cranberry Island, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Crane Island (Oileán na gCorr) , Ballinrobe Civil Parish, Barony of Kilmaine, Co. Mayo
- Crannagh (An Chrannach) , Ardrahan Civil Parish, Barony of Kiltartan, Co. Galway
- Crannagh (An Chrannach) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Crannagh (An Chrannach) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Crappagh (An Chnapach) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Cratlagh Island, Tullyfern Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Craughwell (Creachmhaoil) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Craughwell (Creachmhaoil) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Creagh, Creagh Civil Parish, Barony of Moycarn, Co. Galway
- Creelogh (An Caolach) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Creevagh (An Chraobhach) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Creevagh Middle (An Chraobhach Láir) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Creevagh North (An Chraobhach Thuaidh) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Creevagh South (An Chraobhach Theas) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Creeve Island (Oileán na Craoibhe) , Kilbelfad Civil Parish, Barony of Tirawley, Co. Mayo
- Cregaclare Demesne (Creig an Chláraigh) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Cregaree (Creig an Rí) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Cregboy (An Chreig Bhuí) , Baile Chláir Civil Parish, Barony of Dunkellin, Co. Galway
- Cregboy (An Chreig Bhuí) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Cregcarragh (An Chreig Charrach) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Cregdotia (An Chreig Dhóite) , Cong Civil Parish, Barony of Ross, Co. Galway
- Cregduff (An Chreig Dhubh) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Cregg (An Chreig) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Cregg (Creag) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Cregg (An Chreig) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cregg (An Chreig) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Cregg (An Chreig) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Creggan, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Creggananta (Creig an Neanta) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Cregganna Beg (Creig Eanaigh Bheag) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Cregganna More (Creig Eanaigh Mhór) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Cregganore (Creig an Óir) , Killinan Civil Parish, Barony of Loughrea, Co. Galway
- Creggaree (Creig an Rí) , Cong Civil Parish, Barony of Ross, Co. Galway
- Creggaturlough (Creig an Turlaigh) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Creggaun, Ahascragh Civil Parish, Barony of Clonmacnowen, Co. Galway
- Creggaun (An Creagán) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Cregg Demesne (An Chreig) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Creggeen (An Creigín) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Creggoduff (Creag O'Duibh) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Cregg Park (Páirc na Creige) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Creggymulgreny (Creig Uí Mhaoilghréine) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Creglucas (Creig Lúcáis) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Cregmahon (Creig Mhic Mhatháin) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Cregmore (An Chreig Mhór) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Cregmore (An Chreig Mhór) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Cregnanagh (Creig na nEach) , Moorgagagh Civil Parish, Barony of Kilmaine, Co. Mayo
- Cregnanagh (Creig na nEach) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Croaghan Island, Clondavaddog Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Croaghnakeela Island (Cruach na Caoile) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Croaghrim (Cruachroim) , Cong Civil Parish, Barony of Ross, Co. Galway
- Crocknaraw (Cnoc na Rátha) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Croghan Demesne (Diméin Chruacháin) , Croghan Civil Parish, Barony of Lower Philipstown, Co. Offaly
- Croghanhill (Cnoc Chruacháin) (aka Croghan Hill) , Croghan Civil Parish, Barony of Lower Philipstown, Co. Offaly
- Croghnut, Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Cromwells Island (Oileán Chromaill) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Cronamuck (Cró na Muc) , Kilteevoge Civil Parish, Barony of Raphoe South, Co. Donegal
- Crooroe Park (An Chruach Rua) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Crosheen (An Croisín) , Drumacoo Civil Parish, Barony of Dunkellin, Co. Galway
- Cross (An Chrois) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Crossaun (An Crosán or Leitreach) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Crossderry (Cros Doire) , Lickerrig Civil Parish, Barony of Dunkellin, Co. Galway
- Cross East (An Chrois Thoir) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Crossmacrin (Crois Mhaí Crainn) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Crossneen (Crois Naíon) , Killeshin Civil Parish, Barony of Slievemargy, Co. Carlow
- Crossooha (Crois Uatha) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Crossursa (Crois Fhursa) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Cross West (An Chrois Thiar) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Crovinish (Creimhinis) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Crow Island, Kilnamanagh Civil Parish, Barony of Bear, Co. Cork
- Crow Island (An Cró) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Crowsnest (Áit Ti Préacháin) , Clontuskert Civil Parish, Barony of Longford, Co. Galway
- Cruagh (Cruach) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Cruckeen Island, Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Crumlin (Cromghlinn) , Abbeyknockmoy Civil Parish, Barony of Tiaquin, Co. Galway
- Crumlin East (Cromghlinn Thoir) , Ross Civil Parish, Barony of Ross, Co. Galway
- Crumlin West (Cromghlinn Thiar) , Ross Civil Parish, Barony of Ross, Co. Galway
- Crummagh (Cromach) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Crump Island (Oileán Dá Chruinne) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Crusheeny (Na Croisíní) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Cuildooish (Coill Dubhais) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Cuilleen (Coillín) (aka Culleen) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Cuilleen (An Coillín) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cuilleen (An Coillín) , Cargin Civil Parish, Barony of Clare, Co. Galway
- Cuilleen, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Cuilleendaeagh (Coillín Dá Fhiach) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cuilmore (An Choill Mhór) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Culfin (Cuilfinn) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Cullagh (An Choilleach) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Cullairbaun (An Coiléar Bán) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Culleen (An Coillín) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Culleenalena (Coillín an Léana) , Cong Civil Parish, Barony of Ross, Co. Galway
- Cullenagh (Cuileannach) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Cullenagh Beg (Cuileannach Bheag) (aka Cullenaghbeg) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Cullenagh More (Cuileannach Mhór) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Culliagharny, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Culliaghbeg (An Choilleach Bheag) , Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Culliagh Beg (Coilleach Beag) (aka Culliaghbeg) , Ross Civil Parish, Barony of Ross, Co. Galway
- Culliaghmore (An Choilleach Mhór) , Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Culliagh More (Coilleach Mór) (aka Culliaghmore) , Ross Civil Parish, Barony of Ross, Co. Galway
- Culnagore (Cúil na gComhar) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Cummer (Comar) , Cummer Civil Parish, Barony of Clare, Co. Galway
- Cummer (An Comar) , Ross Civil Parish, Barony of Ross, Co. Mayo
- Cunnamore (Conamar) , Aghadown Civil Parish, Barony of West Carbery (East Division), Co. Cork
- Cur (Corr) , Ross Civil Parish, Barony of Ross, Co. Galway
- Curhoor (Cuarthuar) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Curhownagh (Corrthamhnach) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Curleys Island, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Curra (An Chorra) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Curragh (An Currach) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Curragh (An Currach) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Curragh (Currach) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Curraghaderry (Currach an Doire) , Liskeevy Civil Parish, Barony of Dunmore, Co. Galway
- Curraghagower, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Curraghbaun (An Currach Bán) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Curragh Beg (An Currach Beag) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Curraghcreen (An Currach Críon) , Tuam Civil Parish, Barony of Dunmore, Co. Galway
- Curraghcreen (An Currach Críon) , Tuam Civil Parish, Barony of Dunmore, Co. Galway
- Curraghduff East (An Currach Dubh Thoir) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Curraghduff Middle (An Currach Dubh Láir) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Curraghduff West (An Currach Dubh Thiar) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Curraghmore (An Currach Mór) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Curraghmore (An Currach Mór) , Baile Chláir Civil Parish, Barony of Clare, Co. Galway
- Curragh More (An Currach Mór) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Curraghroe (An Currach Rua) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Curraghs (An Currach) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Curragrean (Cora Ghrian) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Currarevagh (An Currach Riabhach) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Currarevagh (An Chorr Riabhach) , Ross Civil Parish, Barony of Ross, Co. Galway
- Curraun Beg (Corrán Beag) (aka Curraunbeg) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Curraun Hill (Cnoc an Chorráin) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Curraun More (Corrán Mór) (aka Curraunmore) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Curraveha (Cora Bheithe) (aka Birchhall) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Currawatia (An Chora Bháite) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Currywongaun (Cor Ui Mhongáin) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Curtaun (An Crotán) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Cuscarrick (Cuscarrick) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Cuscarrick (Cuscarrick) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Cushatrough (Cois a' t-Srutha) (aka Cushatrogh) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Cushatrower (Cois Treabhair) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Cusheen Island (Oileán Coisín) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Cushmaigmore (Coismeig Mór) , Rahoon Civil Parish, Barony of Moycullen, Co. Galway
- Cussafoor Island (Cosa Fuara) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Dadreen (Dhá dTrian) , Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Dalgan Demesne (Dealgain) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Dalystown Demesne (Baile Uí Dhálaigh) , Leitrim Civil Parish, Barony of Leitrim, Co. Galway
- Dangan (An Daingean Beag) (aka Dangan Beg) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Dangan Upper (An Daingean Uachtair) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Dartfield (Gort na Saighde) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Davillaun (Damhoileán) , Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Dawros (Damhros) , Kilmoylan Civil Parish, Barony of Clare, Co. Galway
- Dawrosbeg (Damh-Ros Beag) (aka Dawros Beg) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Dawros Island (Oileán Dhamhrois) , Inishkeel Civil Parish, Barony of Boylagh, Co. Donegal
- Dawrosmore (Damh Ros Mór) (aka Dawros More) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Dear Island (aka Deer Island) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Deer Island (Oileán na bhFianna) , Burriscarra Civil Parish, Barony of Carra, Co. Mayo
- Deerpark, Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Deerpark (Páirc na bhFianna) , Kilchreest Civil Parish, Barony of Dunkellin, Co. Galway
- Deerpark (Páirc na bhFianna) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Deerpark (Páirc na bhFia) , Cong Civil Parish, Barony of Ross, Co. Galway
- Deerpark (Páirc na bhFianna) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Deerpark (Páirc na bhFianna) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Deerpark (Páirc na bhFia) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Deerpark (Páirc na bhFianna) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Deerpark (Páirc na bhFianna) , Killeany Civil Parish, Barony of Clare, Co. Galway
- Deerpark (Páirc na bhFianna) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Deerpark, Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Deerpark (Páirc na bhFianna) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Deerpark (Páirc na bhFianna) , Kilconierin Civil Parish, Barony of Athenry, Co. Galway
- Demesne (Diméin an Ardeaspaig or Cnoc an Áir) (aka Knockanaar) , Tuam Civil Parish, Barony of Dunmore, Co. Galway
- Demesne (Diméin an Ardeaspaig or Cnoc an Áir) (aka Knockanaar) , Tuam Civil Parish, Barony of Dunmore, Co. Galway
- Derradda (Doire Fhada) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Derradda (Doire Fhada) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Derradda (Doire Fhada) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Derradda South (Doire Fhada Theas) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Derravonniff (Doire Dhá Bhanbh) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Derreen (An Doirín) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Derreen (Doirín) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Derreen (Doirín an Charnáin) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Derreen (Doirín) , Ross Civil Parish, Barony of Ross, Co. Galway
- Derreenboy (An Doirín Buí) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Derreenmeel (Doire Míol) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Derreennagusfoor (Doirín na gCos fuar) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Derreennamucka (Doirín na Muice) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Derreennanalbanagh (Doirín na nAlbanach) , Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Derreennawinshin (Doirín na bhFuinseann) , Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Derreens Island (An tOileán Rua) , Kilcommon Civil Parish, Barony of Erris, Co. Mayo
- Derreighter (Doire Íochtair) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Derrew (Na Doiriú) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Derrew (Na Doiriú) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Derrigimlagh (Deirg Imleach) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Derrineel (Doire an Aoil) , Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Derrinish (Dairinis) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Derrinrush Island (Oileán Dhoire an Rois) , Burriscarra Civil Parish, Barony of Carra, Co. Mayo
- Derroogh North (Na Doiriú Thuaidh) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Derroura (Doire Abhra) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Derry (An Doire) , Ballinchalla Civil Parish, Barony of Ross, Co. Mayo
- Derry (An Doire) , Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Derry (Doire) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Derry (An Doire) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Derry (Doire) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Derry (An Doire) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Derryadd East (Doire Fhada Thoir) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Derryadd West (Doire Fhada Thiar) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Derrybeg (Doire Beag) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Derrybeg (Doire Beag) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Derrybrien East (Daraidh Braoin Thoir) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Derrybrien North (Daraidh Braoin Thuaidh) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Derrybrien South (Daraidh Braoin Theas) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Derrybrien West (Daraidh Braoin Thiar) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Derrycallan Commons (Coimín Dhoire Challainn) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Derrycallan North (Doire Challainn Thuaidh) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Derrycallan South (Doire Challainn Theas) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Derryclare (Doire Chláir) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Derrycrag (Doire Chraige) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Derrycrih (Doire Chrith) , Rahoon Civil Parish, Barony of Moycullen, Co. Galway
- Derrycunlagh (Doire Chunlaigh) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Derrydonnell Beg (Doire Uí Dhónaill Beag) , Athenry Civil Parish, Barony of Dunkellin, Co. Galway
- Derrydonnell More (Doire Uí Dhónaill Mór) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Derrydonnell North (Doire Uí Dhónaill Thuaidh) , Athenry Civil Parish, Barony of Dunkellin, Co. Galway
- Derryeighter (Doire Iochtair) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Derryerglinna (Doire Oirghlinne) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Derryfrench (Doirr an Fhrinsigh) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Derrygarriff (Doire Gharbh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Derrygill (Doire Ghill) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Derrygoolin North (Doire Gualainne Thuaidh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Derrygoolin South (Doire Gualainne Theas) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Derryherbert (Doire Thoirbirt) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Derryherbert (Doire Herbeirt) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Derryhiveny North (Doire Shuibhne Thuaidh) , Kilmalinoge Civil Parish, Barony of Longford, Co. Galway
- Derryhiveny South (Doire Shuibhne Theas) , Kilmalinoge Civil Parish, Barony of Longford, Co. Galway
- Derryhoyle Beg (Doire Thuathail Beag) , Lickerrig Civil Parish, Barony of Dunkellin, Co. Galway
- Derryhoyle More (Doire Thuathail Mór) , Lickerrig Civil Parish, Barony of Dunkellin, Co. Galway
- Derryinver (Doire Inbhir) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Derrykeel (Doire Chaol) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Derrylahan, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Derrylahan (Doire Leathan) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Derrylahan (Doire Leathan) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Derrylaura (Doire Lára) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Derrylea (Doire Liath) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Derryloney (Doire Lónaí) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Derryloughan East (Doire Locháin Thoir) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Derryloughan West (Doire Locháin Thiar) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Derrymaclaughna (Doire Mhic Lachna) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Derrymore (Doire Mór) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Derrymullan, Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Derrymullan, Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Derrynacleigh (Doire na Cloiche) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Derrynamanagh (Doire na Manach) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Derrynavglaun (Doire na bhFlann) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Derryneen (Doirinín) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Derryness Island, Inishkeel Civil Parish, Barony of Boylagh, Co. Donegal
- Derryoober East (Doire Úbair Thoir) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Derryoober West (Doire Úbair Thiar) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Derryoughter (Doire Uachtair) , Rahoon Civil Parish, Barony of Moycullen, Co. Galway
- Derrypark (Páirc An Doire) , Ballinchalla Civil Parish, Barony of Ross, Co. Mayo
- Derryreel (Doire Uí Fhríl) , Clondahorky Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Derryrush (Doire Iorrais) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Derrysillagh (Doire Salach) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Derrysiskal (Doire Siscil) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Derryvealawauma (Doire Bhéil a Mháma) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Derryvickrune (Doire Mhic Riúin) (aka Derryvickroan) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Derryvoghil (Doire an Bhuachalla) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Derryvokeel (Doire Mhaigh Chaoil) , Ardrahan Civil Parish, Barony of Loughrea, Co. Galway
- Derryvoreada (Doire Maighréada) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Derryvunlam (Doire Bhunlam) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Derrywee East (Doire Bhuí Thoir) , Kilthomas Civil Parish, Barony of Kiltartan, Co. Galway
- Derrywee West (Doire Bhuí Thiar) , Kilthomas Civil Parish, Barony of Kiltartan, Co. Galway
- Devenish Island (Daimhinis) , Ballinrobe Civil Parish, Barony of Kilmaine, Co. Mayo
- Devenish Island, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Devinish Island (Daimhinis) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Dinish (Daighinis) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Dinish Island (Duínis) , Tuosist Civil Parish, Barony of Glanarought, Co. Kerry
- Dirkbeg (An Deirc Bheag) , Ballinchalla Civil Parish, Barony of Ross, Co. Mayo
- Dog Island (Oileán an Mhada) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Dog's Island (aka Dogs Island) , Kilmeane Civil Parish, Barony of Athlone, Co. Roscommon
- Doire an Fhéich (Doire an Fhéich) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Doire Bhriosc (Doire Bhriosc) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Doire Choill (Doire Choill) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Doire Uí Fhril (Doire Uí Fhril) , Raymunterdoney Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Dolan (Dolán) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Dolanstown Kilcashel, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Donaghpatrick (Domhnach Pádraig) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Dooaghtry (Dumha Eachtra) , Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Doocreggaun (An Dúchreagán) , Aughrim Civil Parish, Barony of Clonmacnowen, Co. Galway
- Doogarraun (Dúgharrán) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Dooghcloon (Dúchluain) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Dooghta (Dubhachta) , Cong Civil Parish, Barony of Ross, Co. Galway
- Doohulla (Dubhtholla) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Dooletter (Dubh Leitir) , Ross Civil Parish, Barony of Ross, Co. Mayo
- Dooletter East (Duibh-Leitir Thoir) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Dooletter West (Duibh-Leitir Thiar) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Doon (Dún) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Doon (An Dún) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Doon (An Dún) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Doonally East (Dún Aille Thoir) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Doonally West (Dún Aille Thiar) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Doonanpatrick Island (Dúnán Phádraig) (aka Doonanpatrick) , Killaspugbrone Civil Parish, Barony of Carbury, Co. Sligo
- Doonard (Dún Árd) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Doonaree (Dún an Fhraoigh) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Doonawaul (Dún na bhFál) (aka Doonawaul Island) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Doonbeg Island (Oileán an Dúin Bhig) , Ballinrobe Civil Parish, Barony of Kilmaine, Co. Mayo
- Dooneen (An Dúinín) , Kilgeever Civil Parish, Co. Mayo
- Dooneen (Dúinin) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Dooneen Island (An Dúinín) , Ross Civil Parish, Barony of Ross, Co. Galway
- Doonloghan (Dún Locháin) (aka Doonloughaun) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Doon Lower (An Dún Íochtair) , Fohanagh Civil Parish, Barony of Kilconnell, Co. Galway
- Doonmacreena (Dún Mac Ríne) , Kilvine Civil Parish, Barony of Clanmorris, Co. Mayo
- Doonnahineena Island (Dún na hIníne) , Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Doonowen (Dún Eoghan) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Doonreaghan (Dún Riacháin) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Doon Upper (An Dún Uachtair) , Fohanagh Civil Parish, Barony of Kilconnell, Co. Galway
- Dooros (Dubh Ros) , Cong Civil Parish, Barony of Ross, Co. Galway
- Dooros (Dúros) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Dooros (Damhros) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Dooroy (Dúráithe) , Cong Civil Parish, Barony of Ross, Co. Galway
- Doorus (Dúros or Dubh Ros) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Doorus Demesne (Diméin Dhúrois) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Doovilra (Dumha Bhiolra) , Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Dooyeher (Dumhaigh Ithir) (aka Dooyeher) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Dorinish Beg (Deoirinis Bheag) (aka Dorinishbeg) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Dorinish More (Deoirinis Mhór) (aka Dorinishmore) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Doughiska (Dabhach Uisce) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Dovepark (Páirc Na gColm) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Dowagh East (Dabhach Thoir) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Dowagh West (Dabhach Thiar) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Drimcong (Droim Chonga) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Drimmavohaun (Droim an Mhúcháin) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Drimmeen (Droimnín) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Drimna East (An Droimne Thoir) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Drimnahoon (Droim na hUamhan) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Drimna West (An Droimne Thiar) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Drimneen (Droimnín) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Drimneen (Droimnín) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Drin (Droinn) , Ross Civil Parish, Barony of Ross, Co. Galway
- Drinagh (Droigheanach) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Dringeen Eighter (Droingín Íochtarach) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Dringeen Middle (Droingín Láir) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Dringeen Oughter (Droingín Uachtair) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Drishaghaun (Driseachán) , Ross Civil Parish, Barony of Ross, Co. Galway
- Dromorehill (An Droim Mór) (aka Dromore) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Drought (Drochta) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Drum (An Droim) , Addergoole Civil Parish, Barony of Dunmore, Co. Galway
- Drum (An Droim) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Drumacappul Islands (Droim an Chapaill) , Kilmore Civil Parish, Barony of Erris, Co. Mayo
- Drumacoo (Droim Mucú) , Drumacoo Civil Parish, Barony of Dunkellin, Co. Galway
- Drumacrin, Rossinver Civil Parish, Barony of Tirhugh, Co. Donegal
- Drumalagagh, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Drumatober (Droim an Tobair) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Drumbaun (An Droim Bán) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Drum East (An Droim Thoir) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Drumelly (Droim Oilí) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Drumeyre (Droim Eyre) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Drumgooaun (Droim Dhúbháin) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Drumgriffin (Droim Grifín) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Drumharsna North (Droim Tharsna Thuaidh) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Drumharsna South (Droim Tharsna Theas) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Drumhogan (Droim Uí Ógáin) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Drumkeary East (Droim Chiara Thoir) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Drumkeary West (Droim Chiara Thiar) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Drummans Island (Oileán na Dromainne) , Kilbryan Civil Parish, Barony of Boyle, Co. Roscommon
- Drummaveg (Droma Bheag) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Drummin (An Dromainn) , Kilteskill Civil Parish, Barony of Loughrea, Co. Galway
- Drummin (An Dromainn) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Drummin (An Dromainn) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Drummin (An Droimon) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Drumminacloghaun (Droiminn an Chlocháin) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Drumminacoosaun (Droiminn an Chuasáin) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Drumminalough (Droiminn an Locha) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Drumminnakill (Droim na Cille) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Drumminnamuckla North (Droiminn na Muclach Thuaidh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Drumminnamuckla South (Droiminn na Muclach Theas) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Drumscar (Droim Scartha) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Drumsheel Lower (Droim Síl Íochtarach) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Drumsheel Upper (Droim Síl Uachtarach) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Drumsnauv (Droim Snámha) , Cong Civil Parish, Barony of Ross, Co. Galway
- Drum West (An Droim Thiar) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Duck Island (Oileán na Lachan) , Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Duck Island (Oileán Lachan) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Duck Island (Oileán Lachan) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Dundawoona Point (Gob an Dúin) , Kilcar Civil Parish, Barony of Banagh, Co. Donegal
- Dundoogan (Dún gCuagáin) , Kilgerrill Civil Parish, Barony of Kilconnell, Co. Galway
- Dungory East (Dún Guaire Thoir) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Dungory West (Dún Guaire Thiar) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Duniry (Dún Doighre) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Dunkellin (Dún Coillín) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Dunkerron Island East, Templenoe Civil Parish, Barony of Dunkerron South, Co. Kerry
- Dunkerron Island West, Templenoe Civil Parish, Barony of Dunkerron South, Co. Kerry
- Dunlo (Dún Leo) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Dunsandle (Dún Sandail) , Lickerrig Civil Parish, Barony of Loughrea, Co. Galway
- Duvillaun Beg (Dubhoileán Beag) (aka Duvillaunbeg) , Kilmore Civil Parish, Barony of Erris, Co. Mayo
- Duvillaun More (Dubhoileán Mór) (aka Duvillaunmore) , Kilmore Civil Parish, Barony of Erris, Co. Mayo
- Eaglehill (Cnoc an Iolair) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Eagle Island, Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Eagle Island (Oileán sa Tuaidh) , Kilmore Civil Parish, Barony of Erris, Co. Mayo
- Earls Island (Oileán an Iarla) , Ross Civil Parish, Barony of Ross, Co. Galway
- Earlspark (Páirc an Iarla) (aka Earls Park) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Eashal Island (Oileán Íseal) (aka Eeshal Island) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Easterfield (Buaile na Cásca) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Eastwell (Cloch Mhic Fhaolaís) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Edenderry (Éadan Doire) , Monasteroris Civil Parish, Barony of Coolestown, Co. Offaly
- Edenhill (Cnocán Déidín) , Killogilleen Civil Parish, Barony of Loughrea, Co. Galway
- Ederinishfree (Eadarinis Fraoigh) , Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Edernish (Eadar Inis) , Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Edernish (Eadarinis or Idir Inis) , Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Eighterard (Íochtar Ard) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Einaun Island, Kilcrohane Civil Parish, Barony of Dunkerron South, Co. Kerry
- Ellagh (Oileach) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Ellagh (Oileach) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Emlagh (Imleach) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Emlagh (Imleach) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Emlagh (Imleach) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Emlagharan (Imleach Arann) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Emlaghdauroe (Imleach Dhá Ruadh) (aka Emlaghdarroe) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Emlaghmore (Imleach Mór) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Emlaghmore (Imleach Mór) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Englishtown (An Baile Gallda) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Eragh Island South (An tOileán Iarthach Theas) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Erriff (An Oirimh) , Aghagower Civil Parish, Barony of Murrisk, Co. Mayo
- Errisbeg East (Iorras Beag Thoir) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Errisbeg West (Iorros Beag Thiar) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Ervallagh (Oirbhealach) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Esker (Eiscir) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Esker (An Eiscir) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Eskerboy (An Eiscir Bhuí) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Esker Island (Oileán Eascrach) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Eskerroe (An Eiscir Rua) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Eskershanore (Eskershanore) , Kilchreest Civil Parish, Barony of Loughrea, Co. Galway
- Evneenmore Island (An tAibhnín Mór) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Eyrecourt Demesne (Diméin Dhún an Uchta) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Eyrecourt Demesne (Diméin Dhún an Uchta) , Donanaghta Civil Parish, Barony of Longford, Co. Galway
- Eyrephort (Iar Phort) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Fahy (Faithche) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Fahy (An Fhaiche) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Fahy (Fahy) , Fahy Civil Parish, Barony of Longford, Co. Galway
- Fahy (An Fhaiche) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Fahy (An Fhaiche) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Fahymactibbot (Faiche Mhic Thiobóid) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Fahysvillage (Baile Uí Fhathaigh) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Fairfield (Clocharnach) , Kilgerrill Civil Parish, Barony of Clonmacnowen, Co. Galway
- Fairfield (Fairfield) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Fairyhill (Pocaróca) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Fairy Island (Oileán na Sióg) , Calry Civil Parish, Barony of Carbury, Co. Sligo
- Fakeeragh (Faiche Chaorach) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Faltia (Fáilte) , Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Farnaght (Farnocht) , Cong Civil Parish, Barony of Ross, Co. Galway
- Farnaun (Fearnán) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Farranablake East (Fearann an Bhlácaigh Thoir) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Farranablake West (Fearann an Bhlácaigh Thiar) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Farranalynch (Fearann an Línsigh) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Farrangavnagh (Fearann Geibheannach) , Cargin Civil Parish, Barony of Clare, Co. Galway
- Farrannabox (Fearann an Bhoscaigh) , Tuam Civil Parish, Barony of Clare, Co. Galway
- Farrannamartin (Fearann na Máirtíneach) , Tuam Civil Parish, Barony of Clare, Co. Galway
- Farravaun (An Fearbhán) , Monivea Civil Parish, Barony of Clare, Co. Galway
- Farravaun (An Fearbhán) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Farta (Fearta) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Fartagar (Fearta Ghearr) , Kilbennan Civil Parish, Barony of Dunmore, Co. Galway
- Fartamore (Fearta Mhór) , Kilbennan Civil Parish, Barony of Dunmore, Co. Galway
- Faul (Faill) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Faunin (Fánainn) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Fawnarevagh (Fána Riabhach) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Fawnmore (An Fán Mór) , Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Feagh (Fiach) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Feagh (Fíoch) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Feaghbeg (An Fiodh Beag) , Fahy Civil Parish, Barony of Longford, Co. Galway
- Feaghmore Eighter (An Fiodh Mór Íochtair) , Fahy Civil Parish, Barony of Longford, Co. Galway
- Feaghmore Oughter (An Fiodh Mór Uachtair) , Fahy Civil Parish, Barony of Longford, Co. Galway
- Fearagha (Fiaracha) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Fearmore (An Fiar Mór) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Fearmore (An Fiar Mór) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Feebrack (Fiodh Breac) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Ferrinch Island, Cloontuskert Civil Parish, Barony of Ballintober South, Co. Roscommon
- Ferry Island, Clondavaddog Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Fiddaun (An Feadán) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Fiddaun (An F) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Fiddaun Island (Oileán an Fheadáin) , Drumacoo Civil Parish, Barony of Dunkellin, Co. Galway
- Finish Island (Fínis) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Finisklin (Fionnasclainn) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Finner, Rossinver Civil Parish, Barony of Tirhugh, Co. Donegal
- Finnisglin (Ballynakill) (Fionnasclann) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Finnure (Fionnúir) , Abbeygormacan Civil Parish, Barony of Leitrim, Co. Galway
- Finny (Fionnaithe) , Ross Civil Parish, Barony of Ross, Co. Mayo
- Fionnán (Fionnán) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Flat Island, Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Flat Island (An tOileán Leathan) , St. John's Civil Parish, Barony of Carbury, Co. Sligo
- Foher (Fothair) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Foolagh (Fualacha) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Foorannagh (Fuar Eanach) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Foorgloss (Fuar Glas) (aka Toorgloss) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Forillan (Foroileán) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Forillanabraher (Foroileán na mBráthar) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Formaoil (Formaoil) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Forramoyle East (Na Foraí Maola Thoir) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Forramoyle West (Na Foraí Maola Thiar) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Fough East (An Fhuathach Thoir) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Foughil Island, Caher Civil Parish, Barony of Iveragh, Co. Kerry
- Fough West (An Fhuathach Thiar) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Fountainhill (Cnoc an Tobair) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Foxhall (Sonnach) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Foxhall Little (Sonnach Beag) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Fox Island (Oileán an tSionnaigh) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Freaghillan (aka Bilberry Island) , Turlough Civil Parish, Barony of Carra, Co. Mayo
- Freaghillan (Fraochoileán) , Ballysakeery Civil Parish, Barony of Tirawley, Co. Mayo
- Freaghillan East (Fraochoileán Thoir) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Freaghillanluggagh (Fraochoileán Logach) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Freaghillan West (Fraochoileán Thiar) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Freaghillaun (Fraoch Oileán) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Freaghillaun-beg (Fraochoileán Beag) (aka Freaghillaunbeg) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Freaghillaun-more, Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Freaghillaun-more (Fraochoileán Mór) (aka Freaghillaunmore) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Freaghillaun North (Fraochoileán Thuaidh) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Freaghillaun South (Fraochoileán Theas) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Freeheen Island (Fraoichín) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Freeport (An Chéibh) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Frenchfort (Cathair Uí Mhaighin) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Frenchpark (Páirc an Fhrancaigh) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Friar Island (Oileán na mBráthar) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Friars Island (Oileán na mBráthar) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Friars Island (Oileán na mBráthar) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Friarsland (Talamh na mBráthar) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Friary (Teach na mBráthar) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Funshadaun (Fuinseadán) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Funshinaugh (Fuinseannach) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Funshin Beg (Fuinsinn Beag) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Funshin More (Fuinsinn Mhór) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Furboghgarve (Na Forbacha Garbha) , Rahoon Civil Parish, Barony of Moycullen, Co. Galway
- Furnace (Fornais) (aka Furnace Island) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Furzypark (Páirc na hAitinne) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Furzypark (Páirc na hAitinne) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Furzypark (Páirc na hAitinne) , Isertkelly Civil Parish, Barony of Loughrea, Co. Galway
- Fynagh (Fíonach) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Gaghta Island (Geachta) (aka Gaghta) , Kilmore Civil Parish, Barony of Erris, Co. Mayo
- Galboley (An Ghallbhuaile) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Galboley (An Ghallbhuaile) , Killimordaly Civil Parish, Barony of Athenry, Co. Galway
- Gall Island, Drumcreehy Civil Parish, Barony of Burren, Co. Clare
- Gannaveen (Gainmhín) , Clontuskert Civil Parish, Barony of Longford, Co. Galway
- Gannoughs (Gaineamhachaidhe) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Gannow (Gaineamh) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Ganty (Gaintí) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Garbally Demesne, Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Garbally Demesne, Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Gardenblake (Garraí Bhláicín) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Gardenblake Commons (Coimín Gharraí Bhláicín or Cloch a Bhuaille) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Garinish (Gar Inis) , Kilcaskan Civil Parish, Barony of Bear, Co. Cork
- Garinish Island, Barony of Bear, Co. Cork
- Garnagh Island (Garanach) , Kilkenny West Civil Parish, Barony of Kilkenny West, Co. Westmeath
- Garracloon (Garbhchluain) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Garracloon North (An Gharbhchluain Thuaidh) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Garracloon South (An Gharbhchluain Theas) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Garrankyle East (Garrán Coill Thoir) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Garrankyle West (Garrán Coill Thiar) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Garraun (An Garrán) , Moorgagagh Civil Parish, Barony of Kilmaine, Co. Mayo
- Garraun (An Garrán) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Garraun (An Garrán) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Garraun (An Garrán) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Garraun (An Garrán) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Garraunbaun (Gearrán Ban) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Garrauncreen (An Garrán Críon) , Kilmoylan Civil Parish, Barony of Clare, Co. Galway
- Garraun Lower (An Garrán Íochtair) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Garraunnameetagh (Garrán na mBiatach) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Garraun North (An Garrán Thuaidh) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Garraun North (An Garraun Thuaidh) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Garraunphaudeen (Garrán Pháidín) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Garraun South (An Garrán Theas) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Garraun South (An Garrán Theas) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Garraun Upper (An Garrán Uachtair) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Garrison (An Garastún) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Garrivinnagh (Gairbhfionach) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Garroman (An Gharmain) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Garryad and Garryduff (An Garraí Ard agus an Garraí Dubh) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Garryboghala (Garraí an Bhuachalla) , Abbeygormacan Civil Parish, Barony of Leitrim, Co. Galway
- Garryhubert (Garraí Hoibeaird) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Garryland (Gairealán) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Garrylawrence (Garraí) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Garrymore (An Garraí Mór or An Garraidh Mór) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Garrymore (An Garraí Mór) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- Garrymore (An Garraí Mór or An Garraidh Mór) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Garrynaglogh (Garraí na gCloch) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Garrynagry (Garraí na Graí) (aka Gorrynagry) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Garrynamishaun (Garraí na Miseán) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- Garrynasillagh (Garraí na Saileach) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- George's Island (Oileán Sheoirse) (aka Georges Island) , Killala Civil Parish, Barony of Tirawley, Co. Mayo
- Gilroe (An Ghabail Rua) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Girls' Island, Cashel Civil Parish, Barony of Rathcline, Co. Longford
- Glashedy Island, Clonmany Civil Parish, Barony of Inishowen East, Co. Donegal
- Glasillaun (Glas Oileán) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Glassan (An Glasán) , Kilkenny West Civil Parish, Barony of Kilkenny West, Co. Westmeath
- Glassillan (Glas Oileán) , Kilcommon Civil Parish, Barony of Erris, Co. Mayo
- Glassillaun (Glasoileán) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Glassillaun (Glas Oileán) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Glassillaun (Glasoileán) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Glassillaunvealnacurra (Glas Oileán) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Glasvally (An Glasbhaile) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Gleann Mhac Muirinn (Gleann Mhac Muirinn) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Gleann Trasna (Gleann Trasna) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Glebe (An Ghléib) (aka Glebe of Carnglass) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Glebe (An Glaidhb) , Kilteevoge Civil Parish, Barony of Raphoe South, Co. Donegal
- Glebe (An Ghléib) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Glebe (An Ghléib) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Glebe (An Ghléib) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Glebe (An Ghléib) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Glebe (An Ghléib) , Tuam Civil Parish, Barony of Clare, Co. Galway
- Glebe (An Ghléib) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Glebe (An Ghléib) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Glen (Gleann) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Glenaclara East (Gleann an Chláraigh Thoir) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Glenaclara West (Gleann an Chláraigh Thiar) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Glenanail (Gleann Na Néal) , St Nicholas Civil Parish, Barony of Galway, Co. Galway
- Glenaruid (Gleann a Ruid) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Glenatallan (Gleann an tSalainn) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Glenbeg East (An Gleann Beag Thoir) , Ross Civil Parish, Barony of Ross, Co. Mayo
- Glenbeg West (An Gleann Beag Thiar) , Ross Civil Parish, Barony of Ross, Co. Mayo
- Glenbrack (An Gleann Breac) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Glenbrickeen (Gleann Bhricín) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Glencoaghan (Gleann Chóchan) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Glencoh (Glean Cuaiche) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Glencraff (Gleann Creamha) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Glencrees (Gleann Chraois) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Gleneary Island (Oileán Rí) , Burriscarra Civil Parish, Barony of Carra, Co. Mayo
- Glengowla East (Gleann Gabhla Thoir) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Glengowla West (Gleann Gabhla Thiar) (aka Glengoula West) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Gleninagh (Ballynakill) (Gleann Eidhneach) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Gleninagh (Moyrus) (Gleann Eidhneach) (aka Glenina) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Glenloughaun (Gleann an Locháin) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Glenlusk (Gleann Loiscthe) , Cong Civil Parish, Barony of Ross, Co. Galway
- Glenmeen (An Gleann Mín) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Glenmore (An Gleann Mór) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Glennacally (Gleann na Caillí) , Aghagower Civil Parish, Barony of Murrisk, Co. Mayo
- Glennafosha (Gleann na Fóise) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Glennagarraun (Gleann an Ghearráin) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Glennagevlagh (Gleann na nGeimhleach) , Ross Civil Parish, Barony of Ross, Co. Galway
- Glennagloghaun (Gleann na gClochán) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Glennagloghaun South (Gleann na gClochán Theas) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Glennaneeny (Gleann an Aonaigh) , Cummer Civil Parish, Barony of Clare, Co. Galway
- Glennascaul (Gleann an Scáil) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Glennaskehy (Gleann na Sceiche) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Glennaslat (Gleann na Slat) , Kilteskill Civil Parish, Barony of Leitrim, Co. Galway
- Glennaun (Gleanán) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Glennaun (Gleannán) (aka Glionnán) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Glennavaddoge (Gleann na bhFeadóg) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Glenrevagh (An Gleann Riabhach) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Glenrevagh (An Gleann Riabhach) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Glentaun, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Glentaun, Creagh Civil Parish, Barony of Moycarn, Co. Galway
- Glinsk (Glinsce) (aka Glinska) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Gloves East (Na Glaimhe Thoir) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Gloves Middle (Na Glaimhe Láir) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Gloves Middle (Na Glaimhe Láir) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Gloves South (Na Glaimhe Theas) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Gloves West (Na Glaimhe Thiar) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Gloves West (Na Glaimhe Thiar) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Glynn Island (Oileán Mhic Fhloinn) , St. John's Civil Parish, Barony of Carbury, Co. Sligo
- Goatland (Ceapaigh an Ghabhair) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Goats Island, St. John's Civil Parish, Barony of Carbury, Co. Sligo
- Goats' Island (aka Goats Island) , Rathcline Civil Parish, Barony of Rathcline, Co. Longford
- Go Island, Tulacha Beigile Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Gola Beg Island (Gabhla Beag) , Clondavaddog Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Golam (Gólam) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Gola More Island (Gabhla Mór) , Clondavaddog Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Golden Island (Kilmaine), St Mary's Civil Parish, Barony of Brawny, Co. Westmeath
- Golden Island (St George), St Mary's Civil Parish, Barony of Brawny, Co. Westmeath
- Goldenpark (Páirc an Óir) , Killower Civil Parish, Barony of Clare, Co. Galway
- Gooreen (Guairín) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Gooreenatinny (Guairín a' t-Sionnaigh) (aka Gooreenachinny) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Goose Island (Oileán na nGé) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Goose Island (Inis na nGé) , Ballysakeery Civil Parish, Barony of Tirawley, Co. Mayo
- Gort (Gort Inse Guaire or An Gort) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Gortacallow (Gort a Chaladh) (aka Anglingham) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Gortacarnaun (Gort an Charnáin) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Gortacarnaun (Gort an Charnáin) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Gortachalla (Gort an Chalaidh) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Gortacurra (Gort an Churraigh) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Gortadeegan (Gort an Deagánaigh) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Gortadooey (Gort an Dúigh) , Baile Chláir Civil Parish, Barony of Clare, Co. Galway
- Gortadragaun (Gort Eadragána) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Gortadullisk (Gort an Duilisc) , Tiranascragh Civil Parish, Barony of Longford, Co. Galway
- Gortaghokera (Gort an Chócraigh) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Gortagowan (Gort an Ghabhann) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Gortaha (Cort Chatha) (aka Gortfahy) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Gortakeeran (Gort an Chaorthainn) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Gortaloman (Gort an Lomáin) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Gortalough (Gort an Locha) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Gortaloughane (Gort an Locháin) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Gortaneare (Gort an Fhéir) , Duniry Civil Parish, Barony of Longford, Co. Galway
- Gortanummera (Gort an Iomaire) (aka Gortanumera) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Gortard (An Gort Árd) , Stradbally Civil Parish, Barony of Dunkellin, Co. Galway
- Gortard (An Gort Ard) , Isertkelly Civil Parish, Barony of Loughrea, Co. Galway
- Gortarica (Gort an Reidhce) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Gortaroe (An Gort Rua) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Gortaroe (Gorta Rua) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Gortatleva (Gort An tSleibhe) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Gortatleva (Gort an tSléibhe) , Baile Chláir Civil Parish, Barony of Dunkellin, Co. Galway
- Gortatober (Gort an Tobair) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Gortavaura (Gort an Bharra) , Abbeyknockmoy Civil Parish, Barony of Clare, Co. Galway
- Gortavoher (Gort an Bhóthair) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Gortavoher (Gort an Bhóthair) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Gortawullaun (Gort an Bholláin) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Gortawullaun (Gort an Bhalláin) , Kilmalinoge Civil Parish, Barony of Longford, Co. Galway
- Gortbeg (An Gort Beag) , Killererin Civil Parish, Barony of Clare, Co. Galway
- Gortbeg (An Gort Beag) , Cummer Civil Parish, Barony of Clare, Co. Galway
- Gortboy (Gorta Buí) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Gortbrack (Gort Breac) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Gortcam (An Gort Cam) , Bullaun Civil Parish, Barony of Loughrea, Co. Galway
- Gortcloonmore (Gort Chluain Mór) , Baile Chláir Civil Parish, Barony of Clare, Co. Galway
- Gortdrisagh (Gort Driseach) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Gortdrishagh (An Gort Driseach) , Abbeygormacan Civil Parish, Barony of Leitrim, Co. Galway
- Gorteen (An Goirtín) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Gorteenacra (Goirtín Acra) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Gorteenanillaun (Goirtín an Oileáin) , Kilchreest Civil Parish, Barony of Loughrea, Co. Galway
- Gorteenaniska (Goirtín an Uisce) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Gorteenapheebera (Goirtín an Phíobaire) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Gorteenapheebera (Goirtín an Phíobaire) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Gorteenaveela (Goirtín an Mhíle) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Gorteenawillin (Goirtín an Mhuilinn) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Gorteenayanka (Goirtín an Gheancaigh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Gorteenboy (An Goirtín Buí) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Gorteencahill (Goirtín Chathail) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Gorteennabohogy (Goirtín na Bothóige) (aka Piperfield) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Gorteennabohogy (Goirtín na Bothóige) (aka Piperfield) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Gorteennaglogh (Goirtín na g-Cloch) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Gorteenroe (An Goirtín Rua) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Gorteens (An Goirtín) , Moorgagagh Civil Parish, Barony of Kilmaine, Co. Mayo
- Gorteeny (Goirtíní) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Gorterwulla (Gort Oiriúlaigh) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Gortfadda (An Gort Fada) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Gortjordan (Gort Mhic Shiurdáin) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Gortknappagh (An Gort Cnapach) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Gortlemon (Gort Lomáin) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Gortlusky (An Gort Loiscthe) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Gortmackan (Gortmackan) , Kilchreest Civil Parish, Barony of Dunkellin, Co. Galway
- Gortmore (Gort Mór) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Gortmore (An Gort Mór) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Gortmore (An Gort Mór) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Gortmore (An Gort Mór) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Gortmore (An Gort Mór) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Gortmore Island (Oileán an Ghoirt Mhóir) , Kilcommon Civil Parish, Barony of Erris, Co. Mayo
- Gortnabarnaboy (Gort na Bearna Buí) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Gortnaboha (Gort na Boithe) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Gortnaclassagh (Gort na Clasach) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Gortnaclassagh (Gort na Clasach) , Cong Civil Parish, Barony of Ross, Co. Galway
- Gortnacloghy (Gort na Cloiche) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Gortnacooheen (Gort na Cuaichín) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Gortnacross (Gort na Croise) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Gortnacullia (Gort na Coille) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Gortnagleav (Gort na gCliabh) , Killinan Civil Parish, Barony of Loughrea, Co. Galway
- Gortnaglogh (Gort na gCloch) , Killinny Civil Parish, Barony of Kiltartan, Co. Galway
- Gortnaglogh (Gort na gCloch) , Kilgerrill Civil Parish, Barony of Clonmacnowen, Co. Galway
- Gortnagroagh (Gort na g-Cruach) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Gortnagunned (Gort na Gonaide or Gort na gConaide) , Addergoole Civil Parish, Barony of Dunmore, Co. Galway
- Gortnahimrissan (Gort na hImreasan) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Gortnahoon (Gort na hUamhan) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Gortnahoon (Gort na hUamhan) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Gortnahorna Clancarty (Gort an Charna (Clancarty)) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Gortnahorna Clanricarde (Gort an Charna (Clanricarde)) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Gortnahown (Gortnahown) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Gortnahultra (Gort na hOltra) , Ballymacward Civil Parish, Barony of Tiaquin, Co. Galway
- Gortnakilla (Gort Na Cille) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Gortnakilla (Gort na Coille) , Donanaghta Civil Parish, Barony of Longford, Co. Galway
- Gortnalecka (Gort Na Leice) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Gortnalone North (Gort na Lon Thuaidh) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Gortnalone South (Gort na Lon Theas) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Gortnaloura (Gort na Lobhra) , Addergoole Civil Parish, Barony of Dunmore, Co. Galway
- Gortnalug (Gort na Log) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Gortnamannagh East (Gort na Manach Thoir) , Kilchreest Civil Parish, Barony of Loughrea, Co. Galway
- Gortnamannagh West (Gort na Manach Thiar) , Kilchreest Civil Parish, Barony of Loughrea, Co. Galway
- Gortnamona (Gort na Móna) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Gortnamona (Gort na Móna) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Gortnamona (Gort na Móna) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Gortnamona East (Gort Na Móna Thoir) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Gortnamona West (Gort Na Móna Thiar) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Gortnanark (Gort na nEarc) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Gortnandarragh (Gort na nDarach) (aka Oakfield) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Gortnaporia (Gort na Pónaire) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Gortnaraheen (Gort an Riacháin) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Gortnarup (Gort na Ropa) , Cong Civil Parish, Barony of Ross, Co. Galway
- Gortnascullogue (Gort na Scológ) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Gortnasharvoge, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Gortnashingaun (Gort na Seangán) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Gortnasillagh (Gort na Saileach) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Gortnaskohoge (Gort na Scothóg) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Gortnasteal (Gort na Stiall) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Gortnavea (Gort Na bhFia) (aka Deerfield) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Gortrea (An Gort Réidh) , Kilmalinoge Civil Parish, Barony of Longford, Co. Galway
- Gortrevagh (An Gort Riabhach) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Gortroe (An Gort Rua) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Gortroe (An Gort Rua) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Gortroe (An Gort Rua) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Gortronnagh (Gort Dronnach) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Gortrory (Gort Ruairí) , Killeany Civil Parish, Barony of Clare, Co. Galway
- Gortrummagh (Gort Dromach) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Gortsheela (Gort Síle) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Gortskeagh (Gort Sciach) , Killinny Civil Parish, Barony of Kiltartan, Co. Galway
- Gort (South) (aka Gort South) , Culdaff Civil Parish, Barony of Inishowen East, Co. Donegal
- Gortstuckanagh (An Gort Stacánach) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Gortyloughlin (Gort Uí Lochlainn) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Gortymadden (Gort Uí Mhadaín) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Gortyneill (Gort Uí Néill) , Kilmalinoge Civil Parish, Barony of Longford, Co. Galway
- Gortyroyan East (Gort Uí Ruaín Thoir) , Ballymacward Civil Parish, Barony of Kilconnell, Co. Galway
- Gortyroyan West (Gort Uí Ruaín Thiar) , Ballymacward Civil Parish, Barony of Kilconnell, Co. Galway
- Gowil (Gall) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Gowla (Gabhla) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Gowlan East (An Gabhlán Thoir) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Gowlan West (Gabhlán) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Gowlaun (An Gabhlán) , Ross Civil Parish, Barony of Ross, Co. Galway
- Gowlaun (An Gabhlán) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Gowlaunlee (Gabhlán Lighe) , Ross Civil Parish, Barony of Ross, Co. Galway
- Graigabbey (An Ghráig) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Graigabbey South (An Ghráig Theas) , Monivea Civil Parish, Barony of Kilconnell, Co. Galway
- Graigue (An Ghráig) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Graigueagowan (Gráig an Ghabhann) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Graigueakilleen (Gráig an Choillín) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Graigueawoneen (Gráig an Mhóinín) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Grallagh (An Ghreallach) , Leitrim Civil Parish, Barony of Leitrim, Co. Galway
- Grallagh (Greallach) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Grange (An Ghráinseach) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Grange (An Ghráinseach) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Grange (An Ghráinseach) , Fahy Civil Parish, Barony of Longford, Co. Galway
- Grange (An Ghráinseach) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Grange Beg (An Ghráinseach Bheag) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Grange East (An Ghráinseach Thoir) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Grange More (An Ghráinseach Mhór) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Grange West (An Ghráinseach Thiar) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Grannagh (An Ghreanach) , Kilthomas Civil Parish, Barony of Kiltartan, Co. Galway
- Grannagh (An Ghreanach) , Ardrahan Civil Parish, Barony of Loughrea, Co. Galway
- Grannaghbeg (An Ghreanach Bheag) , Ardrahan Civil Parish, Barony of Loughrea, Co. Galway
- Graveshill (Cnoc na hUaighe) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Greeneenagh (Griainíneach) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Greenfort Island (aka Grren Fort Isalnd) , Clondavaddog Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Greenhills (Cnoc an Ghrínigh) , Ballymacward Civil Parish, Barony of Kilconnell, Co. Galway
- Green Island, Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Green Island, Drumcreehy Civil Parish, Barony of Burren, Co. Clare
- Green Island, Tullyfern Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Green Island (An tOileán Glas) , Killala Civil Parish, Barony of Tirawley, Co. Mayo
- Green Island, Ardcarn Civil Parish, Barony of Boyle, Co. Roscommon
- Green Island (An tOileán Glas) , St. John's Civil Parish, Barony of Carbury, Co. Sligo
- Green Island (An tOileán Glas) , Killaghtee Civil Parish, Barony of Banagh, Co. Donegal
- Greethill (Cnocán Eibhir) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Greeve Island (Oileán na Craoibhe) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Greyford (An Caithrín Liath) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Griffins Island (aka Griffin's Island) , Ballynahaglish Civil Parish, Barony of Tirawley, Co. Mayo
- Griggins (Na Grigíneacha) , Ross Civil Parish, Barony of Ross, Co. Galway
- Gubfadda Island (An Gob Fada) (aka Gubfadda) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Gull Island, Glencolumbkille Civil Parish, Barony of Banagh, Co. Donegal
- Gull Island (An Eibhear) , Glencolumbkille Civil Parish, Barony of Banagh, Co. Donegal
- Gull Island, Kilmacrenan Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Gurlaun Island (Gearroileán) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Gurrig Island (Gorach) , Killiney Civil Parish, Barony of Corkaguiny, Co. Kerry
- Gurteen (An Goirtín) , Ballingarry Civil Parish, Barony of Lower Ormond, Co. Tipperary
- Gurteenphadder (Goirtín Pheadair) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Gut Island, Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Half Cartron (An Leathchartúr) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Halfmace (An Leathmhás) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Halfstraddle (An Leathchlár Srathra) , Tuam Civil Parish, Barony of Dunmore, Co. Galway
- Halfstraddle (An Leathchlár Srathra) , Tuam Civil Parish, Barony of Dunmore, Co. Galway
- Hardwood (An Choill Chrua) , Aughrim Civil Parish, Barony of Clonmacnowen, Co. Galway
- Hare Island (Oileán Rois Mhóir) , St Nicholas Civil Parish, Barony of Galway, Co. Galway
- Hawthorn Island (Oileán na Sceiche) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Hayes Island, Lorrha Civil Parish, Barony of Lower Ormond, Co. Tipperary
- Hazelfort (Lisín an Choill) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Headford (Áth Cinn) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Hearnesbrooke Demesne (An Bhuaile Bheag) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Heath Island (Oileán Fraoigh) , Achill Civil Parish, Barony of Burrishoole, Co. Mayo
- Heathlawn (An tEanach agus an Currach Buí) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Hen Island (Carraig Chearc) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Hermit Island, Kilbryan Civil Parish, Barony of Boyle, Co. Roscommon
- Hewitson's Island, Tullyfern Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Highfield (An Cheapach Ard) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- High Island (Ardoileán) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Highpark (An Pháirc Ard) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Hillpark (Páirc an Chnoic) (aka Hill Park) , Stradbally Civil Parish, Barony of Dunkellin, Co. Galway
- Hillsend, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Hillswood (Loch an Chléirigh Mór) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Hodson's Pillar Island, Kiltoom Civil Parish, Barony of Athlone, Co. Roscommon
- Hog Island (Oileán na Muice) , Burriscarra Civil Parish, Barony of Carra, Co. Mayo
- Hog Island, Kilmocomoge Civil Parish, Barony of Bantry, Co. Cork
- Hog Island (Oileán Muice) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Hog's Head Island, Kilcrohane Civil Parish, Barony of Dunkerron South, Co. Kerry
- Hog's Island, Boyle Civil Parish, Barony of Boyle, Co. Roscommon
- Holly Island, Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Hollymount (Cnoc an Chuilinn) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Hollymount (Árd an Chuilinn) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Hollypark (An Cárán) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Horse Island (Oileán na gCapall) , Doonfeeny Civil Parish, Barony of Tirawley, Co. Mayo
- Horse Island, Kilmocomoge Civil Parish, Barony of Bantry, Co. Cork
- Horse Island (Oileán an Chapaill) , Drumcliff Civil Parish, Barony of Carbury, Co. Sligo
- Horse Island (Oileán an Chapaill) , Burriscarra Civil Parish, Barony of Carra, Co. Mayo
- Horse Island, Cashel Civil Parish, Barony of Rathcline, Co. Longford
- Horse Island (Oileán an Chapaill) , Killala Civil Parish, Barony of Tirawley, Co. Mayo
- Horse Island (Oileán na gCapall) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Horse Island, Kiltoom Civil Parish, Barony of Athlone, Co. Roscommon
- Horse Island, Skull Civil Parish, Barony of West Carbery (West Division), Co. Cork
- Horse Island, Cill Imleach Civil Parish, Barony of Iveragh, Co. Kerry
- Houndswood Middle (Coill Madra Láir) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Houndswood North (Coill Madra Thuaidh) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Houndswood South (Coill Madra Theas) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Hundredacres (Céad Acra) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Hundredacres (Céad Acra) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Illananirey (Oileán an Oidhre) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Illanaran (Oileán Árainn or Árainn Bheag) , Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Illanataggart (Oileán an tSagairt) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Illanatrim (Oileán an Troim) , Robeen Civil Parish, Barony of Kilmaine, Co. Mayo
- Illanavrick (Oileán a Bhroic) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Illanbaun (An tOileán Bán) , Achill Civil Parish, Barony of Burrishoole, Co. Mayo
- Illanbelfarsad (Oileán Bhéal Feirste) , Achill Civil Parish, Barony of Burrishoole, Co. Mayo
- Illan Boebeg (aka Illanboebeg) , Ballinchalla Civil Parish, Barony of Kilmaine, Co. Mayo
- Illan Boemore (Oileán Bó Mór) (aka Illanboemore) , Ballinchalla Civil Parish, Barony of Kilmaine, Co. Mayo
- Illancarragh (aka Glass Island) , Tulacha Beigile Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Illan Columbkille (Oileán Cholm Cille) , Ballyovey Civil Parish, Barony of Carra, Co. Mayo
- Illancreeve, Inishkeel Civil Parish, Barony of Banagh, Co. Donegal
- Illancroagh (Oileán Cruaiche) , Kilcommon Civil Parish, Barony of Erris, Co. Mayo
- Illancrone (Oileán Cróna) , Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Illandavuck (Oileán Dhabhaic) , Kilmore Civil Parish, Barony of Erris, Co. Mayo
- Illane Beg (Oileán Beag) , Kilnamanagh Civil Parish, Barony of Bear, Co. Cork
- Illanee (Oileán Aodha) , Turlough Civil Parish, Barony of Carra, Co. Mayo
- Illanfad, Inishkeel Civil Parish, Barony of Boylagh, Co. Donegal
- Illangub (Oileán Goib) , Turlough Civil Parish, Barony of Carra, Co. Mayo
- Illanmaster, Kilcommon Civil Parish, Barony of Erris, Co. Mayo
- Illanmaw (Má-oileán) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Illanmore (An tOileán Mór) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Illannaconney (Oileán an Chonnaidh) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Illannambraher East (Oileán na mBráthar Thoir) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Illannambraher West (Oileán na mBráthar Thiar) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Illannamona, Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Illannamona Islands
- Illannascraw (Oileán na Scrath) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Illanneill (Oileán Néill) , Turlough Civil Parish, Barony of Carra, Co. Mayo
- Illanoona (Oileán Úna) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Illan Philipboy, Templecarn Civil Parish, Barony of Tirhugh, Co. Donegal
- Illanroe (An tOileán Rua) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Illanroe (An tOileán Rua) (aka Illaunroe) , Oughaval Civil Parish, Barony of Murrisk, Co. Mayo
- Illanroe (An tOileán Rua) , Kilcommon Civil Parish, Barony of Erris, Co. Mayo
- Illanrory (Oileán Ruairí) , Kilcommon Civil Parish, Barony of Erris, Co. Mayo
- Illanulque (Oileán an Oilc) , Turlough Civil Parish, Barony of Carra, Co. Mayo
- Illaun (An t-Oileán) , Addergoole Civil Parish, Barony of Dunmore, Co. Galway
- Illaunaconaun (Oileán a Chonáin) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Illaunacroghnut (Oileán Cruachnaite) (aka Illaunacroghaul) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Illaunacrusha (Oileán na Croise) , Drumacoo Civil Parish, Barony of Dunkellin, Co. Galway
- Illaunacummig, Kilcrohane Civil Parish, Barony of Dunkerron South, Co. Kerry
- Illaunagappul (Oileán na gCapall) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Illaunagawna (Ré Ghabhna) , Cong Civil Parish, Barony of Ross, Co. Galway
- Illaunagoughal, Meelick Civil Parish, Barony of Longford, Co. Galway
- Illaunagreasy (Oileán an Ghréasaí) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Illaunakip, Abbey Civil Parish, Barony of Burren, Co. Clare
- Illaunaknick (Oileán an Chnoic) (aka Oileáin an Chnoic) , Cong Civil Parish, Barony of Ross, Co. Galway
- Illaunaknock (Oileán an Chnoic) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Illaunaleama (Oileán na Léime) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Illaunalee, Drumcreehy Civil Parish, Barony of Burren, Co. Clare
- Illaunamenara (Oileán Mín) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Illaunamid (Oileán Imill or Ceann Léime) (aka Slyne Head) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Illaunanadan, Kilcrohane Civil Parish, Barony of Dunkerron South, Co. Kerry
- Illaunanarrew (Oileán an Arbha) , Cong Civil Parish, Barony of Ross, Co. Galway
- Illaunanarroor (Oileán an Arbhúir) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Illaunanbissan (Oileán na bPeasán) (aka Scrubby Islands) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Illaunane (Inis Meáin) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Illaunard, Kilnamanagh Civil Parish, Barony of Bear, Co. Cork
- Illaunard (An tOileán Garbh) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Illaunashinnagh (Oileán na Sionnach) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Illaunaskeagh (Oileán na Sceach) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Illaunatraghta (Oileán na dTráchta) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Illaunaveel (Oileán an Mhíl) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Illaunaveetry (Oileán an Bhiatra) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Illaunawehicky Island (Oileán na bhFaochacha) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Illaunboe (Oileán Bó) , Killiney Civil Parish, Barony of Corkaguiny, Co. Kerry
- Illaunboy (An t-Oileán Bhuí) , Dún Chaoin Civil Parish, Barony of Corkaguiny, Co. Kerry
- Illaunboy (Oileán Buí) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Illaunbrock Beg, Drumcreehy Civil Parish, Barony of Burren, Co. Clare
- Illaunbrock More, Gleninagh Civil Parish, Barony of Burren, Co. Clare
- Illauncarbry (Oileán Cairbre) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Illauncohid, Kilnamanagh Civil Parish, Barony of Bear, Co. Cork
- Illauncosheen (Oileán Chaisín) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Illauncraggagh, Drumcreehy Civil Parish, Barony of Burren, Co. Clare
- Illauncurragilka (Oileán Chora an Ghiolcaigh) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Illaundarragh (Oileán Darach) , Cong Civil Parish, Barony of Ross, Co. Galway
- Illaundaulaur, Cong Civil Parish, Barony of Ross, Co. Galway
- Illaundauvrack (Oileán Dá Bhreac) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Illaundonoghrevy (Oileán Dhonncha Riabhaigh) , Cong Civil Parish, Barony of Ross, Co. Galway
- Illaundrane, Kilcrohane Civil Parish, Barony of Dunkerron South, Co. Kerry
- Illaunduff, Drumcreehy Civil Parish, Barony of Burren, Co. Clare
- Illauneeragh (An tOileán Iarthach) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Illauneeragh West (An tOileán Iarthach Thiar) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Illaunfadda (An tOileán Fada) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Illaunfadda (Oileán Fada) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Illaunfadda Beg (An tOileán Fada Beag) (aka Illaunfaddabeg) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Illaunfadda More (An tOileán Fada Mór) (aka Illaunfaddamore) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Illaungawna, Aghadown Civil Parish, Barony of West Carbery (East Division), Co. Cork
- Illaungeesaun, Killala Civil Parish, Barony of Tirawley, Co. Mayo
- Illaungorm North (An tOileán Gorm Thuaidh) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Illaungorm South (An tOileán Gorm Theas) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Illaungraffanavrankagh, Gleninagh Civil Parish, Barony of Burren, Co. Clare
- Illaungurraig (Oileán na nGeabhróg) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Illaunimmil (Oileán Imill) , Killiney Civil Parish, Barony of Corkaguiny, Co. Kerry
- Illaunkyle, Meelick Civil Parish, Barony of Longford, Co. Galway
- Illaunleagh, Kilcrohane Civil Parish, Barony of Dunkerron South, Co. Kerry
- Illaunleenagh (Oileán Líonach) , Cill Aithnín Civil Parish, Barony of Kilmaine, Co. Galway
- Illaunloo, Drumcreehy Civil Parish, Barony of Burren, Co. Clare
- Illaunmaan (Oileán Mana) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Illaunmahon (Oileán na Meathan) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Illaunmore (An tOileán Mór) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Illaunmore (Oileán Mór) , Clonrush Civil Parish, Barony of Leitrim, Co. Clare
- Illaunnaboolia (Oileán na Buaile) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Illaunnacartan, Barony of Iveragh, Co. Kerry
- Illaunnacroaghbeg (Oileán na Cruaiche Beag) (aka Illaunnacroagh Beg) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Illaunnacroaghmore (Oileán na Cruaiche Mór) (aka Illaunnacroagh More) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Illaunnafinnoge (Oileán na Feannóige) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Illaunnagappul (Oileán na gCapall) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Illaunnaginga (Oileán na Ginge) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Illaunnagower (Oileán na nGabhar) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Illaunnaguroge, Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Illaunnakilla, Kilcrohane Civil Parish, Barony of Dunkerron South, Co. Kerry
- Illaunnakirka (Corcaigh) (aka Illaunakerka Island) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Illaunnanoon (Oileán na nUan) , Stradbally Civil Parish, Barony of Corkaguiny, Co. Kerry
- Illaunnanownim (Oileán an Anama) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Illaunnaseer (Oileán na Saor) , Creagh Civil Parish, Co. Cork
- Illaunnaweelaun, Kilcrohane Civil Parish, Barony of Dunkerron South, Co. Kerry
- Illaunonearaun (Oileán an Fhéaráin) , Moyarta Civil Parish, Barony of Moyarta, Co. Clare
- Illaunord, Meelick Civil Parish, Barony of Longford, Co. Galway
- Illaunree (Oileán Rí) , Cong Civil Parish, Barony of Ross, Co. Galway
- Illaunribbeen (Oileán Roibín) , Cong Civil Parish, Barony of Ross, Co. Galway
- Illaunroe (An tOileán Rua) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Illaunroe (An tOileán Rua) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Illaunroe (Na Rua-oileáin) (aka Illaunroe Islands) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Illaunrossalough (Oileán Ros an Locha) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Illaunrush (Oileán Rois) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Illaunsillagh, Kilcrohane Civil Parish, Barony of Dunkerron South, Co. Kerry
- Illaunslea, Kilcrohane Civil Parish, Barony of Dunkerron South, Co. Kerry
- Illauntannig (Oileán tSeanaigh) , Killiney Civil Parish, Barony of Corkaguiny, Co. Kerry
- Illaunurra (Oileán Ura) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Illeny (Uilleanaidhe) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Illion (Uillinn) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Illion East (Uilinn Thoir) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Illion West (Uilinn Thiar) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Inchaboy North (Uinsinn Bhuí Thuaidh) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Inchaboy South (Uinseann Bhuí Theas) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Inchacommaun Islands (Inis Camáin) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Inchaghaun (Inis an Ghainimh) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Inchagoill, Cong Civil Parish, Barony of Ross, Co. Galway
- Inchamakinna (Inis Mhic Cionaith) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Inchamore (Inse Mhór) , Kilthomas Civil Parish, Barony of Kiltartan, Co. Galway
- Incharmadermot (Inse Charbad Diarmada) , Rathcline Civil Parish, Barony of Rathcline, Co. Longford
- Inchinaskeagh (Inse na Sceagh) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Inchiquin (Inis Uí Chuin) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Inchy (na hInsí) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Indreabhán (Indreabhán) (aka Inverin) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Inish (Inis) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Inishacrick (Inis an Chnoic) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishaghoo (Inis Achadh) , Kilcommon Civil Parish, Barony of Erris, Co. Mayo
- Inishannagh, Cong Civil Parish, Barony of Ross, Co. Galway
- Inishbarna (Inis Bearna) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishbarnog, Inishkeel Civil Parish, Barony of Boylagh, Co. Donegal
- Inishbarra (Inis Bearachain) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Inishbeagh (Inis Beitheach) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Inishbee (Inis Bí) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishbeg (Inis Beag) , Kilmactranny Civil Parish, Barony of Tirerrill, Co. Sligo
- Inishbiana (Inis Bóinne) , Cill Aithnín Civil Parish, Barony of Kilmaine, Co. Galway
- Inishbigger (Inis Bigir) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishbiggle (Inis Bigil) (aka Inishbegal) , Kilcommon Civil Parish, Barony of Erris, Co. Mayo
- Inishbobunnan (Inis Bó Bonnán) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishbollog (Inis Bolg) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishbroon (aka Inishbroan) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishcannon (Inis Ceannann) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishcash (Inis Cais) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Inishconga (Inis Conga) , Cong Civil Parish, Barony of Ross, Co. Galway
- Inishcooa (Inis Cua) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishcoragh (Inis Córach) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishcorky (Inis Corcaí) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishcorra (Inis Chomhra) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Inishcottle (Inis Coitil) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishcuill, Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishcuill West, Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishdaff (Inis Daimh) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishdala (Inis Dála) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Inishdalla (Inis Deala) , Inishturk Civil Parish, Barony of Murrisk, Co. Mayo
- Inishdasky (Inis Teasctha) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishdaugh, Kilmeena Civil Parish, Barony of Murrisk, Co. Mayo
- Inishdauwee (Inis Dáith Bhuí) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Inishdauwee (Inis Dáith Bhuí) (Island) , Cong Civil Parish, Barony of Ross, Co. Galway
- Inishdaweel (Inis Dá Mhaol) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishdawros (Inis Damhraí) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishdeash Beg (Inis Déise Beag) (aka Inishdeash-beg) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishdeash More (Inis Déise Mór) (aka Inishdeashmore) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishdegil Beg, Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Inishdegil More (Inis Téigil Mór) , Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Inishderry (Inis Doire) , Kilcommon Civil Parish, Barony of Erris, Co. Mayo
- Inishdoonver (Inis Dúnmhar) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishdoorus (Island) , Cong Civil Parish, Barony of Ross, Co. Galway
- Inishduff, Kilcar Civil Parish, Barony of Banagh, Co. Donegal
- Inishdugga (Inis Duga) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishdugh (Inis Dumhcha) , Ballysakeery Civil Parish, Barony of Tirawley, Co. Mayo
- Inishdurra (Inis Dura) , Ballinrobe Civil Parish, Barony of Kilmaine, Co. Mayo
- Inisheane (Inis Éan) , Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Inishee (Inis Aodha) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Inisheeny, Kilmeena Civil Parish, Barony of Murrisk, Co. Mayo
- Inisheeshalmore (Inis Íseal Mór) (aka Inisheeshal More) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Inisheher, Rossinver Civil Parish, Barony of Rosclogher, Co. Leitrim
- Inisheltia (Inis Aillte) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Inisherk (Inis Eirc) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Inisherkin (Inis Earcáin) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishfaugh, Mevagh Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Inishfesh, Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishflynn (Inis Flainn) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Inishfree Lower (Inis Fraoigh) , Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Inishgalloon (Inis Gealbhan) , Achill Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishgarraun Beg (Inis Gearráin Beag) (aka Inishgarraunbeg) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Inishgarraun More (Inis Gearráin Mór) (aka Inishgarraunmore) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Inishgleasty (Inis Gléasta) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Inishglora (Inis Gluaire) , Kilmore Civil Parish, Barony of Erris, Co. Mayo
- Inishgort (Inis Gort) , Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishgort (Inis Goirt) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishgowla (Inis Gabhla) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishgowla (Inis Gabhla) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishgowla South (Inis Gabhla Theas) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishillintry (Inis Oileantraigh) , Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Inishilra (Inis Iolra) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishimmel (Inis Imill) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishinny, Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Inishinny, Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Inishkea North (Inis Gé Thuaidh) , Kilmore Civil Parish, Barony of Erris, Co. Mayo
- Inishkea South (Inis Gé Theas) , Kilmore Civil Parish, Barony of Erris, Co. Mayo
- Inishkee (Inis Caoich) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishkeel (Inis Caol) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishkeen, Rossinver Civil Parish, Barony of Rosclogher, Co. Leitrim
- Inishkeeragh (aka Inishkeeragh) , Kilmore Civil Parish, Barony of Erris, Co. Mayo
- Inishkeeragh (Inis Caorach) , Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Inishkeeragh (Inis Caorach) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishkeragh (Inis Caorach) , Kilcrohane Civil Parish, Barony of Dunkerron South, Co. Kerry
- Inishlacken, Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishlaghan (Inis Lachan) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishlaughil (Inis Leamhchoille) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishlay (Inis Léith) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Inishleague (Inis Liag) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishlee (Inis Lao) (aka Inishlee Island) , Kilbelfad Civil Parish, Barony of Tirawley, Co. Mayo
- Inishlim (Inis Loim) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishloy (Inis Láí) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishlusk (Inis Loiscthe) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Inishlyon (Inis Laighean) , Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishmacgrath (Inis Mac Rá) (aka Inishmacgrath Island) , Drumreilly Civil Parish, Barony of Drumahaire, Co. Leitrim
- Inishmeal (Inis Míl) , Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Inishmean, Rossinver Civil Parish, Barony of Rosclogher, Co. Leitrim
- Inishmicatreer (Inis Mhic an Trír) (aka Inishmacatreer) (Island) , Cill Aithnín Civil Parish, Barony of Kilmaine, Co. Galway
- Inishmolt, Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishmore (Inis Mór) , Killadoon Civil Parish, Barony of Tirerrill, Co. Sligo
- Inishmuskerry (Inis Múscraí) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishnabo, Drumhome Civil Parish, Barony of Tirhugh, Co. Donegal
- Inishnacross (Inis na Croise) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishnanean (Inis na nÉan) , Cong Civil Parish, Barony of Ross, Co. Galway
- Inishnee (Inis Ní) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishodriscol or Hare Island (aka Heir Island) , Aghadown Civil Parish, Barony of West Carbery (East Division), Co. Cork
- Inishoght (Inis Uicht) , Ballinchalla Civil Parish, Barony of Kilmaine, Co. Mayo
- Inishoo (Inis Uamha) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishool (Inis Úll) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Inishowel (Inis Abhall) , Ballinchalla Civil Parish, Barony of Kilmaine, Co. Mayo
- Inishowen (Inis Eoghain) , Ballinchalla Civil Parish, Barony of Kilmaine, Co. Mayo
- Inishowen (Inis Eoghain) , Inishkeel Civil Parish, Barony of Boylagh, Co. Donegal
- Inishpat, Drumhome Civil Parish, Barony of Tirhugh, Co. Donegal
- Inishquirk (Inis Coirc) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishraher (Inis Raithir) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishsamer (aka Inish Samer) , Inishmacsaint Civil Parish, Barony of Tirhugh, Co. Donegal
- Inishshanboe (Inis Seanbhotha) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Inishshark (Inis Airc) (aka Inishark) , Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishskehan (Inis Sceithín) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Inishskinnybeg (Inis Scine Beag) , Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishskinnymore (Inis Scine Mór) , Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishtemple, Rossinver Civil Parish, Barony of Rosclogher, Co. Leitrim
- Inishthee (Inis Tuí) , Cong Civil Parish, Barony of Ross, Co. Galway
- Inishtooskert (Inis Tuaisceart) , Killiney Civil Parish, Barony of Corkaguiny, Co. Kerry
- Inishtrahull (Inis Trá Tholl) , Clonca Civil Parish, Barony of Inishowen East, Co. Donegal
- Inishtravin (Inis Treabhair) (aka Inishtrawer) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishtreh (Inis Troighe) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishtroghen-more (Inis Srathair) (aka Inishtroghenmore) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishtubbrid (Inis Tiobrad) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishturk (Inis Toirc) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishturlin (Inis Tuirlinge) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Inishule (Inis Úll) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Inishvinlush (Inis Mhionlais) , Cong Civil Parish, Barony of Ross, Co. Galway
- Inishyweel, Kilmacrenan Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Innisfree, Killerry Civil Parish, Barony of Tirerrill, Co. Sligo
- Innplot (Preabán an Ósta) (aka Inn Plot) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Ironpool (Poll an Iarainn) , Kilconla Civil Parish, Barony of Dunmore, Co. Galway
- Isertkelly North (Díseart Ceallaigh Thuaidh) , Isertkelly Civil Parish, Barony of Loughrea, Co. Galway
- Isertkelly South (Díseart Ceallaigh Theas) , Isertkelly Civil Parish, Barony of Loughrea, Co. Galway
- Island (An tOileán) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Island (An tOileán) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Islandagu (Oileán A Chú) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Island Beg (An tOileán Beag) (aka Islandbeg) , Ross Civil Parish, Barony of Ross, Co. Galway
- Island Eddy (Oileán Eide) , Drumacoo Civil Parish, Barony of Dunkellin, Co. Galway
- Islandmore (An tOileán Mór) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Islandmore (An tOileán Mór) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Islandmore, Addergoole Civil Parish, Barony of Tirawley, Co. Mayo
- Islandmore (An tOileán Mór) (aka Island More) (Island) , Ross Civil Parish, Barony of Ross, Co. Galway
- Johnstown (Baile Eoin) , Killower Civil Parish, Barony of Clare, Co. Galway
- Joyce's Park (Páirc an tSeoighigh) (aka Joyces Park) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Juniper Island, Clondahorky Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Juniper Island, Kilmacrenan Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Kanargad (Ceann ar Gad) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Kanrawer (Ceann Ramhar) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Keamsallagh East (Céim Saileach Thoir) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Keamsallagh West (Céim Saileach Thiar) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Keeagh (An Chaothach) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Keekill (Caolchoill) , Killeany Civil Parish, Barony of Clare, Co. Galway
- Keelderry (Caoldoire) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Keelkyle (Caol Choill) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Keeloge (An Chaológ) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Keely's Island (aka Keely Island) , Kilmore Civil Parish, Barony of Erris, Co. Mayo
- Keenaghan (Caonachán) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Keeraun (An Caorán) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Keeraunmore (Caorthán Mór) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Keeraunnagark South (Caorán na g-Cearc Theas) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Keerhaun North (Caorthán Thuaidh) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Keerhaun South (Caorthán Theas) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Keernaun (Caorthannán) , Killeany Civil Parish, Barony of Clare, Co. Galway
- Kellysgrove (Tuaim Catraí) (aka Kellys Grove) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Kelly's Island (Oileán Uí Cheallaigh) , Cong Civil Parish, Barony of Ross, Co. Galway
- Kentfield (Baile an Cheantaigh) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Kid Island (Oileán Mionnán) , Kilcommon Civil Parish, Barony of Erris, Co. Mayo
- Kid Island East (Oileán na Meannán) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Kilbeacanty (Cill Bheaganta) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Kilbeg (An Choill Bheag) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Kilbeg (An Choill Bheag) (aka Kilbeg Wood) , Cargin Civil Parish, Barony of Clare, Co. Galway
- Kilbeg (An Choill Bheag) , Killinan Civil Parish, Barony of Loughrea, Co. Galway
- Kilbegly, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Kilbeg Upper (An Choill Bheag Uachtair) , Ross Civil Parish, Barony of Ross, Co. Galway
- Kilboght (Cill Bhocht) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Kilbrickan (Cill Bhreacáin) (aka Kilbreckan) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Kilbride (Cill Bhríde) , KIlbride Civil Parish, Barony of Lower Talbotstown, Co. Wicklow
- Kilbride (Cill Bhríde) , Abbeygormacan Civil Parish, Barony of Leitrim, Co. Galway
- Kilbride (Cill Bhríde) , Ross Civil Parish, Barony of Ross, Co. Mayo
- Kilcahill (Cill Chathail) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Kilcaimin (Cill Chaimín) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Kilcarrooraun (Cill Charúráin) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Kilchreest (Cill Chríost) , Kilchreest Civil Parish, Barony of Dunkellin, Co. Galway
- Kilcloggaun (Cill Chlogáin) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Kilcloony, Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Kilcloony (Cill Chluanaigh) , Tuam Civil Parish, Barony of Dunmore, Co. Galway
- Kilcloony, Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Kilcolgan (Cill Cholgáin) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Kilcommadan (Cill Chumadáin) , Aughrim Civil Parish, Barony of Clonmacnowen, Co. Galway
- Kilconieran (Cill Chon Iarainn) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Kilcooly (Cill Chúile) , Kilcooly Civil Parish, Barony of Leitrim, Co. Galway
- Kilcoona (Cill Chuanna) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Kilcorban (Cill Chorbain) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Kilcorkey (Cill Churcaí) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Kilcornan (Cill Chornáin) , Monivea Civil Parish, Barony of Kilconnell, Co. Galway
- Kilcornan (Cill Chornáin) , Stradbally Civil Parish, Barony of Dunkellin, Co. Galway
- Kilcreevanty (Cill Chraobhanta) , Kilbennan Civil Parish, Barony of Dunmore, Co. Galway
- Kilcrimple (Cill Chruimthir) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Kilcrow (Coill Chró) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Kilcurrivard (Cill Choirbh Ard) , Cummer Civil Parish, Barony of Clare, Co. Galway
- Kilcurriv Eighter (Cill Choirbh Íochtair) , Cummer Civil Parish, Barony of Clare, Co. Galway
- Kildaree (Cill Dair I) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Kildrum (Cill Droma) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Kildun Beg (Cill Ghoin Bheag) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Kildun More (Cill Ghoin Mhór) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Kilgarriff (An Choill Gharbh) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Kilgarve, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Kilgarve, Creagh Civil Parish, Barony of Moycarn, Co. Galway
- Kilgerrill (Cill Ghoirill) , Kilgerrill Civil Parish, Barony of Clonmacnowen, Co. Galway
- Kilgevrin (Cill Ghoibhreann) , Addergoole Civil Parish, Barony of Dunmore, Co. Galway
- Kilgill (Cill Ghill) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Kilhonerush (Coill Sheoin Ruis or Ceathrú na Coille) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Kilkeeran (Cill Chiaráin) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Kilkieran (Cill Chiaráin) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Kilkilvery (Cill Chilbhire) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Kill (Coill na Cille) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Kill (An Choill) , Tiranascragh Civil Parish, Barony of Longford, Co. Galway
- Kill (Cill) (aka Kill (Omey)) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Kill (Cillín Bréanainn) , Moorgagagh Civil Parish, Barony of Kilmaine, Co. Mayo
- Kill (An Chill) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Kill (Cill) (aka Ecclesia) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Killaan (Cill Leáin) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Killadullisk (Coill an Duilisc) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Killafeen (Cille Fian) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Killagh Beg (Cill Achaidh Bheag) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Killagh More (Cill Achaidh Mhór) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Killaghoor, Oughaval Civil Parish, Barony of Murrisk, Co. Mayo
- Killagoola (Cill Ogúla) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Killaguile (Cill an Ghaill) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Killallaghtan (Cill Alachtáin) , Killallaghtan Civil Parish, Barony of Clonmacnowen, Co. Galway
- Killaloonty (Cill an Lóntaigh) , Tuam Civil Parish, Barony of Clare, Co. Galway
- Killaltanagh (Coill Altanach) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Killamanagh (Cill na Manach) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Killanin (Cill Aithnín) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Killarainy (Cill Ráinne) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Killareeny (Coill Bhraonaigh) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- Killarriv (Cill Arbha) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Killascaul (Coill an Scáil) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Killaspugmoylan (Cill Easpaig Mhaoláin) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Killeany (Cill Éinne) , Árainn Civil Parish, Barony of Aran, Co. Galway
- Killederdaowen (Coill Idir Dhá Abhainn) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Killeely Beg (Caol Beag) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Killeely More (Caol Mór) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Killeen (Coillín) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Killeen (An Cillín) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Killeen (An Cillín) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Killeen (An Cillín) , Leitrim Civil Parish, Barony of Leitrim, Co. Galway
- Killeen (Cillín) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Killeenadeema East (Cillín a Díoma Thoir) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Killeenadeema West (Cillín a Díoma Thiar) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Killeenaran (Coillín Árann) , Drumacoo Civil Parish, Barony of Dunkellin, Co. Galway
- Killeenavarra (Cill Fhionnbharra) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Killeen East (An Coillín Thoir) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Killeeneen Beg (Cill Fhínín Bheag) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Killeeneen More (Cillín Fhínín Mhór) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Killeenhugh (Coillín Aodha) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Killeenmunterland South (Coillín Mhuintir Leáin Theas) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Killeenmunterlane North (Coillín Mhuintir Leáin Thuaidh) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Killeen North (An Coillín Thuaidh) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Killeenpatrick (Cillín Pádraig) , Isertkelly Civil Parish, Barony of Loughrea, Co. Galway
- Killeens Island, Meelick Civil Parish, Barony of Longford, Co. Galway
- Killeen South (An Coillín Theas) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Killeen West (An Coillín Thiar) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Killeragh (An Choill Iarthach) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Killerneen (Cill Eirnín) , Addergoole Civil Parish, Barony of Dunmore, Co. Galway
- Killescragh (Cill Eiscreach) , Killimordaly Civil Parish, Barony of Athenry, Co. Galway
- Killevny (Cill Aibhne) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Killiane (Cill Liatháin) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Killimor (Cill Íomair) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Killimor and Boleybeg (Cill Íomair agus an Bhuaile Bheag) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Killinny East (Cill Eithne Thoir) , Killinny Civil Parish, Barony of Kiltartan, Co. Galway
- Killinny West (Cill Eithne Thiar) , Killinny Civil Parish, Barony of Kiltartan, Co. Galway
- Killlachunna (Coill an Chonnaidh) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Killogilleen (Cill Charúráin) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Killola (Cill Ola) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Killomoran (Cill Ó Móráin) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Killora (Cill Órtha) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Killoran (Cill Odhráin) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Killoran (Cill Odhráin) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Killough (Coilleach) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Killower (Cill Leabhair) , Killower Civil Parish, Barony of Clare, Co. Galway
- Killuppaun (Clonbrock) (Cill Lapáin (Clonbrock)) , Ahascragh Civil Parish, Barony of Clonmacnowen, Co. Galway
- Killure Beg (Cill Iúir Bheag) , Kilgerrill Civil Parish, Barony of Clonmacnowen, Co. Galway
- Killure Castle (Cill Iúir an Chaisleáin) , Kilgerrill Civil Parish, Barony of Clonmacnowen, Co. Galway
- Killure More (Cill Íúir Mhór) , Kilgerrill Civil Parish, Barony of Clonmacnowen, Co. Galway
- Killymongaun (Coill Uí Mhongáin) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Kilmacduagh (Cill Mhic Dhuach) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Kilmacduagh (Cill Mhic Dhuach) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Kilmachugh (Coill Mhic Aodha) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Kilmacrah (Cill Mhic Raith) , Leitrim Civil Parish, Barony of Leitrim, Co. Galway
- Kilmacshane (Coill Mhic Sheáin) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Kilmacshane (Coill Mhic Sheáin) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Kilmalaw (Coill Mhaí Lacha) , Kilgerrill Civil Parish, Barony of Clonmacnowen, Co. Galway
- Kilmalinoge (Cill Molonóg) , Kilmalinoge Civil Parish, Barony of Longford, Co. Galway
- Kilmeelickin (Béal Átha na mBreac) (aka Coill Mhíolcon) , Ross Civil Parish, Barony of Ross, Co. Galway
- Kilmeen (Cill Mhian) , Kilmeen Civil Parish, Barony of Leitrim, Co. Galway
- Kilmore (An Choill Mhór) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Kilmore (An Choill Mhór) , Ross Civil Parish, Barony of Ross, Co. Mayo
- Kilmore (An Choill Mór) , Tuam Civil Parish, Barony of Clare, Co. Galway
- Kilmurry (Cill Mhuire) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Kilmurry (Cill Mhuire) , Cargin Civil Parish, Barony of Clare, Co. Galway
- Kilmurry (Cill Mhuire) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Kilmurvy (Cill Mhuirbhigh) , Árainn Civil Parish, Barony of Aran, Co. Galway
- Kilnaborris (Coill na Buiríse) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Kilnagappagh (Coill na gCeapach) , Killinan Civil Parish, Barony of Loughrea, Co. Galway
- Kilnahown (Coill na hAbhann) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Kilnamullaun (Coill na Mullán) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Kilnamullaun (Coill na Mullán) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Kiln Island (Oileán na hÁithe) , Burriscarra Civil Parish, Barony of Carra, Co. Mayo
- Kilquain (Cill Chuáin) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Kilquain (Cill Chuáin) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Kilroe (An Choill Rua) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Kilroe East (An Choill Rua Thoir) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Kilroe West (An Choill Rua Thiar) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Kilroghter (Coill Uachtair) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Kilshanvy (Cill tSeanbhoithe) , Kilconla Civil Parish, Barony of Dunmore, Co. Galway
- Kilskeagh (Cill Sciach) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Kiltartan (Cill Tartan) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Kilteel Upper (Cill Chéile Uachtarach) , Killteel Civil Parish, Barony of South Salt, Co. Kildare
- Kiltiernan East (Cill Tiarnáin Thoir) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Kiltiernan West (Cill Tiarnáin Thiar) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Kiltogorra (Coillte Ó gCorra) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Kiltormer East (Cill Tormóir Thoir) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Kiltormer West (Cill Tormóir Thiar) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Kiltrasna (Coill Trasna) , Killeany Civil Parish, Barony of Clare, Co. Galway
- Kiltroge (Cill Torróg) , Baile Chláir Civil Parish, Barony of Clare, Co. Galway
- Kiltroge (Cill Torróg) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Kiltullagh (Cill Tulach) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Kiltullagh North (Cill Tulach Thuaidh) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Kiltullagh South (Cill Tulach Theas) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Kilwullaun (Cill Mhothlan) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Kimmeenmore (An Coimín Mór) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Kinatevdilla (Ceann an tSeimhdile or Ceann a' Taobh Díle) (aka Beetle Head) , Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Kings Island, Cashel Civil Parish, Barony of Rathcline, Co. Longford
- Kingsland North (Talamh an Rí Thuaidh) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Kingsland South (Talamh an Rí Theas) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Kinincha (Cionn Inse) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Kiniska (Cinn Uisce) , Baile Chláir Civil Parish, Barony of Clare, Co. Galway
- Kinkeel Island, Glencolumbkille Civil Parish, Barony of Banagh, Co. Donegal
- Kinlough (Cionn Locha) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Kinmona North (Cionn Mhóna Thuaidh) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Kinmona South (Cionn Mhóna Theas) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Kinnaveelish (Roinn Mhílis) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- Kinnelly Islands (Cionlaí) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Kinvarra (Cinn Mhara) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Kinvarra (Cinn Mhara) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Knavagh (An Chreamhach) , Tiranascragh Civil Parish, Barony of Longford, Co. Galway
- Knocakavilra (Cnoc a' Bhiolra) (aka Fountainhill) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Knock (An Cnoc) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Knock (Cnoc) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Knock (An Cnoc) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Knock (An Cnoc) , Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Knockaboy (An Cnoc Buí) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Knockacarrigeen (Cnoc an Charraigín) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Knockadaumore (Cnoc an Daimh Mhóir) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Knockadav (Cnoc a' Daimh) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Knockadoagh (Cnoc a' Dabhach) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Knockadrum (Cnoc Fhardroma) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Knockalassa (Cnoc an Leasa) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Knockalough (Cnoc An Locha) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Knockanima (Cnoc an Ime) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Knockaphreaghaun (Cnoc a' Phréacháin) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Knockarasser (Cnoc ar Easair) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Knockash (Cnoc Ais) , Kilteskill Civil Parish, Barony of Loughrea, Co. Galway
- Knockatillane (Cnoc an tSaileáin) , KIlbride Civil Parish, Barony of Lower Talbotstown, Co. Wicklow
- Knockatober (An Poll Buí) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Knockatogher (Cnoc an Tóchair) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Knockatoo (Cnoc an tSamhnaigh) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Knockatoo Mountain (Sliabh Chnoc an tSamhnaigh) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Knockatoor (Cnoc an Tuair) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Knockaun (An Cnocán) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Knockaun (An Cnocán) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Knockaunakirkeen (Cnocán an Chircín) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Knockaunatouk (Cnocán an tSeabhaic) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Knockaunbaun (An Cnocán Bán) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Knockaunbaun (An Cnocán Bán) , Kilteskill Civil Parish, Barony of Leitrim, Co. Galway
- Knockaunbaun (Cnocán Bán) , Ross Civil Parish, Barony of Ross, Co. Galway
- Knockauncarragh (An Cnocán Carrach) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Knockauncoura (Cnocán Cobhra) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Knockauncoura (Cnocán Cobhra) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Knockauncoura (Cnocán Cobhra) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Knockaundarragh (Cnocán Darach) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Knockauneevin and Ballywatteen (An Cnocán Aoibhinn agus Baile Bhaitín) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Knockaunglass (An Cnocán Glas) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Knockaunnacarragh (An Cnocán Carrach) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Knockaunranny (Cnocán Raithní) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Knockavally (Cnoc a' Bhaile) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Knockawuddy (Cnoc An Bhodaigh) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Knockballyclery (Cnoc Bhaile Uí Chléirigh) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Knockbane (An Cnoc Bán) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Knockbaron (Cnoc Barúin) , Kilmeen Civil Parish, Barony of Leitrim, Co. Galway
- Knockbaun (Cnoc Bán) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Knockbaun (An Cnoc Bán) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Knockbaun (An Cnoc Bán) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Knockbaun (An Cnoc Bán) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Knockbeg (An Cnoc Beag) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Knockboy (Cnoc Buí) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Knockbrack (An Cnoc Breac) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Knockbrack (An Cnoc Breac) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Knockbrack (An Cnoc Breac) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Knockbrack (An Cnoc Breac) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Knockdoebeg East (Cnoc Tua Beag Thoir) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Knockdoebeg West (Cnoc Tua Beag Thiar) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Knockdoemore (Cnoc Tua Mór) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Knockdoemore (Cnoc Tua Mór) , Baile Chláir Civil Parish, Barony of Clare, Co. Galway
- Knockdrummore (Cnoc Droma Móir) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Knockereen (Cnoc Céirín) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Knockglass (An Cnoc Glas) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Knockkillaree (Cnoc Chill an Fhraoigh) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Knocklawrence (Cnoc Labhráis) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Knockmore (An Cnoc Mór) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Knockmoyle East (An Cnoc Maol Thoir) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Knockmoyle West (An Cnoc Maol Thiar) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Knocknaboley (Cnoc na Buaile) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Knocknacarragh (Cnoc na Cathrach) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Knocknacreeva (Cnoc na Craoibhe) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Knocknadaula (Cnoc Ard Dála) , Killimordaly Civil Parish, Barony of Athenry, Co. Galway
- Knocknadaula (Cnoc Ard Dála) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Knocknagappagh (Cnoc na gCeapach) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Knocknageeha (Cnoc na Gaoithe) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Knocknahaw (Cnoc na h-Áithe) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Knocknamanagh (Cnoc na Manach) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Knocknapisha (Cnoc na Pise) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Knock North (An Cnoc Thuaidh) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Knock North (An Cnoc Thuaidh) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Knockoura (Cnoc Úra) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Knockouran (Cnoc Obhráin) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Knockranny (Cnoc Raithní) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Knockroe (An Cnoc Rua) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Knockroe (An Cnoc Rua) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Knockroe (An Cnoc Rua) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Knockroe (An Cnoc Rua) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Knockroe (An Cnoc Rua) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Knockroe (An Cnoc Rua) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Knockroebeg (An Cnoc Rua Beag) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Knockshanbally (Cnoc an tSeanbhaile) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Knockshangarry (Cnoc an tSeangharraí) , Kilmeen Civil Parish, Barony of Leitrim, Co. Galway
- Knock South (An Cnoc) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Knock South (An Cnoc Theas) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Knocktoby (Cnoc Thiobóid) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Kylagowan (Coill an Ghabhann) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Kyleaglannawood (Coill an Ghleanna) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Kylebeg (An Choill Bheag) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Kylebrack (Coill Breac) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Kylebrack East (An Choill Bhreac Thoir) , Leitrim Civil Parish, Barony of Leitrim, Co. Galway
- Kylebrack West (An Choill Bhreac Thiar) , Leitrim Civil Parish, Barony of Leitrim, Co. Galway
- Kylebroghlan (Coill Bhruachláin) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Kyleegan (Coill Chlainne Aogáin) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Kylegarriff (An Choill Gharbh) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Kylemore (An Choill Mhór) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Kylemore (An Choill Mhór) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Kylemore (An Choill Mhór) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Kylemore (Coill Mór) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Kylenagappa (Coill na gCeapach) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Kylenamelly (Coill na Meille) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Kylesalia (Coill Sáile) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Lackabaun (An Leaca Bhán) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Lackabaun (An Leaca Bhán) , Killinan Civil Parish, Barony of Dunkellin, Co. Galway
- Lackabaun (An Leaca Bhán) , Kilchreest Civil Parish, Barony of Dunkellin, Co. Galway
- Lackafinna (Na Leaca Fionna) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Lackafinna North (Na Leaca Fionna Thuaidh) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Lackafinna South (Na Leaca Fionna) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Lackagh (Leacach) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Lackagh Beg (Leacach Beag) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Lackagh More (Leacach Mór) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Lackakeely (Leac an Chaolaigh) , Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Lackalea (Na Leaca Liath) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Lackan (An Leacan) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Lackan (An Leacain) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Lackanroe (An Leacain Rua) , Kilmoylan Civil Parish, Barony of Clare, Co. Galway
- Lackavrea (Leac Aimréidhe) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Lacklea (An Leac Liath) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Lady's Island (Oileán na Mná Uaisle) , Ballintober Civil Parish, Barony of Carra, Co. Mayo
- Laggoo (Leagúch) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Laghtanabba (Leacht an Abba) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Laghtgannon (Leacht Geanainn) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Laghtgeorge (Leacht Seoirse) (aka Loughgeorge) , Baile Chláir Civil Parish, Barony of Clare, Co. Galway
- Laghtphilip (Leacht Philib) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Laghtyshaughnessy (Leacht Uí Sheachnasaigh) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Lahanacappul Island (Leitheanach Capaill) , Dromard Civil Parish, Barony of Tireragh, Co. Sligo
- Lahan Island, Ardcarn Civil Parish, Barony of Boyle, Co. Roscommon
- Lahan Island (An t-Oileán Leathan) , Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Lahardaun (An Leathardán) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Lahardaun (An Leathardán) , Killinan Civil Parish, Barony of Dunkellin, Co. Galway
- Lahardaun (An Leathardán) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Lakefield (Garraí an Locháin) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Lakeview (Droim na Gaoithe) , Baile Chláir Civil Parish, Barony of Dunkellin, Co. Galway
- Lakyle (Leathchoill or Leath Choill) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Lamb Island, Caher Civil Parish, Barony of Iveragh, Co. Kerry
- Lamb's Island, Kilcrohane Civil Parish, Barony of Dunkerron South, Co. Kerry
- Lambs Island, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Lambs Island, Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Laragh (Leathráth) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Laragh Beg (An Láithreach Beag) , Abbeyknockmoy Civil Parish, Barony of Clare, Co. Galway
- Laragh More (An Láithreach Mór) , Abbeyknockmoy Civil Parish, Barony of Clare, Co. Galway
- Largan (An Leargain) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Larraga (An Learga) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Larragan (An Leargain) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Laughaun Island (Oileán na Lachan) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Laughil (Leamhchoill) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Laughil (An Leathchoill) , Lickerrig Civil Parish, Barony of Dunkellin, Co. Galway
- Laughil (An Leathchoill) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Laughil (An Leathchoill) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Laughil (An Leathchoill) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Laughil, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Laurclavagh (An Láthair Chlamhach) , Cummer Civil Parish, Barony of Clare, Co. Galway
- Laurencetown (An Baile Mór) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Lavagh (Leamhach) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Lavally (An Leathbhaile) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Lavally (An Leathbhaile) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Lavally (An Leathbhaile) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Lavallyconor (Leathbhaile Uí Chonchúir) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Leagaun (Liagán) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Leagaun (Liagán) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Leaghcarrick (Liath Charraig) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Leagh North (Na Liatha Thuaidh) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Leagh South (Na Liatha Theas) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Lealetter (Liath Leitir) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Leamareha Island (Léim an Reithe) , Kilmore Civil Parish, Barony of Erris, Co. Mayo
- Leamcon (Léim Con) , Kilteskill Civil Parish, Barony of Leitrim, Co. Galway
- Leamnahye Island (Oileán Léim na hAighe) , Ballyovey Civil Parish, Barony of Carra, Co. Mayo
- Lecarrow (An Leathcheathrú) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Lecarrow (An Leithcheathrú) , Ross Civil Parish, Barony of Ross, Co. Galway
- Lecarrow (Leath Cheathrú) , Kilmeen Civil Parish, Barony of Leitrim, Co. Galway
- Lecarrow (An Leithcheathrú) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Lecarrow (An Leithcheathrú) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Lecarrow (An Leithcheathrú or An Leathcheathrú) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Lecarrow (Leath Cheathrú) , Lickerrig Civil Parish, Barony of Dunkellin, Co. Galway
- Lecarrowkilleen (Leithcheathrú an Chillín) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Lecarrowmactully (Leithcheathrú Mhic Mhaoltuile) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Lecarrowmore (An Leithcheathrú Mhór) , Baile Chláir Civil Parish, Barony of Clare, Co. Galway
- Lecarrownagappoge (Leithcheathrú na gCopóg) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Lecarrow North (An Leath Cheathrú Thuaidh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Lecarrowntruhaun (Leithcheathrú an tSrutháin) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Lecarrow South (An Leath Cheathrú Theas) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Lecknabegga (Na Leicne Beaga) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Lecknavarna (Lec na bh-Fearna) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Lecky Rocks
- Lee (Lighe) , Ross Civil Parish, Barony of Ross, Co. Galway
- Leenaun (Lionán) (aka Leenane) , Ross Civil Parish, Barony of Ross, Co. Galway
- Lee's Island (Oileán Uí Laoigh) (Island) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Lehanagh North (Liathanach Thuaidh) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Lehanagh South (Liathanach) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Lehid (Leithead) , Kilbennan Civil Parish, Barony of Dunmore, Co. Galway
- Lehid (Leitheadh) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Lehinch (Leithinse) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Leighon (Laidhean) (aka Leighon Island) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Leitir Creamha Rua (Leitir Creamha Rua) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Leitir Fhinín (Leitir Fhinín) , Ballinrobe Civil Parish, Barony of Ross, Co. Mayo
- Leitir Mealláin (Leitir Mealláin) (aka Lettermullen) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Leitir Mucú (Leitir Mucú) (aka Leitir Mucú) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Leitrim Beg (Liatroim Beag) , Leitrim Civil Parish, Barony of Leitrim, Co. Galway
- Leitrim More (Liatroim Mór) , Leitrim Civil Parish, Barony of Leitrim, Co. Galway
- Lemnaheltia (Léim na h-Eilte) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Lemonfield (An Chorr) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Lenabower (An Léana Bodhar) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Lenaboy (An Léana Báite) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Lenafin (An Léana Fionn) , Kilgerrill Civil Parish, Barony of Clonmacnowen, Co. Galway
- Lenaloughra (Léana Luachra) , Fohanagh Civil Parish, Barony of Kilconnell, Co. Galway
- Lenamore (An Léana Mór) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Lenamore (An Léana Mór) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Lenareagh (An Léana Riabhach) , Killimordaly Civil Parish, Barony of Tiaquin, Co. Galway
- Lenareagh (An Léana Riabhach) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Lenarevagh (An Léana Riabhach) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Letter (Leitiir) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Letteragh (Leitreach) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Letterard (Leitreach Ard) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Letterass (Leitir Easa) , Aghagower Civil Parish, Barony of Murrisk, Co. Mayo
- Letter Beg (Leitir Bheag) (aka Letterbeg) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Letterbreckaun (Leitir Breacáin) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Letterbrickaun (Leitir Brecain) , Ross Civil Parish, Barony of Ross, Co. Galway
- Lettercallow (Leitir Calaidh) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Lettercaumus (Leitir Camus) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Lettercraff (Leitir Creamha) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Letterdeen (Leitir Dín) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Letterdeskert (Leitir Deiscirt) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Letterdife (Leitir Daibhche) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Lettereeragh (Leitir Iarthach) , Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Letterettrin (Leitir Eitrionn) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Letterfir (Leitir Fir) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Letterfore (Leitir Feoir) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Letterfrack (Leitir Fraic) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Lettergesh East (Leitir Geis Thoir) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Lettergesh West (Leitir Geis Thiar) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Lettergunnet (Leitir Gungaid) , Rahoon Civil Parish, Barony of Moycullen, Co. Galway
- Letterkeeghaun (Leitir Caocháin) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Lettermas (Leitir Meas) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Lettermore (Leitir Móir) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Lettermore (Leitir Móir na Coille) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Letter More (Leitir Mhór) (aka Lettermore (Ballynakill)) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Letternoosh (Leitir Núis) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Letterpeak (Leitir Péic) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Letterpibrum (Leitir Phíobroim) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Lettershanbally (Leitir a' t-Seanbhaile) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Lettershanna (Leitir Seanaigh) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Lettershea (Leitir Seidh) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Lettershinna (Leitir Seanaidh) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Lettery (Leitrighe) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Levally (An Leathbhaile) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Levallynearl (Leathbhaile an Iarla or Fóit) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- Leveran Island, Cashel Civil Parish, Barony of Rathcline, Co. Longford
- Liberty, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Lickerrig (An Leac Dhearg) , Lickerrig Civil Parish, Barony of Dunkellin, Co. Galway
- Limehill (Cnoc Aoil) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Limepark North (Baile na Creige Thuaidh) , Kilthomas Civil Parish, Barony of Kiltartan, Co. Galway
- Limepark South (Baile na Creige Theas) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Lippa (An Lipe) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Lisbeg (An Lios Beag) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Lisbrine (Lios Braoin) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Liscananaun (Lios Ceanannáin) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Liscappul (Lios an Chapaill) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Liscoyle (Lios Cuaill) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Liscune Lower (Lios Comhain Íochtarach) , Ballymacward Civil Parish, Barony of Kilconnell, Co. Galway
- Liscune Upper (Lios Comhain Uachtarach) , Ballymacward Civil Parish, Barony of Kilconnell, Co. Galway
- Lisdeligny (Inis Deilgne) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Lisdonagh (Lios Donncha) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Lisdonnellroe (Lios Dónaill Rua) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Lisdooaun (Lios Dubháin) , Donanaghta Civil Parish, Barony of Longford, Co. Galway
- Lisdoran (Lios Dobhráin) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Lisduff (An Lios Dubh) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Lisduff (An Lios Dubh) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Lisduff South (An Lios Dubh Theas) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Lisduneen (Lios Duinnín) , Tiranascragh Civil Parish, Barony of Longford, Co. Galway
- Lisdurra (Lios Dora) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Lisfinny (Lios Finne) , Donanaghta Civil Parish, Barony of Longford, Co. Galway
- Lisgar (Lios Gara) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Lisheen (An Lisín) , Eglish Civil Parish, Barony of Eglish, Co. Offaly
- Lisheen (An Lisín) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Lisheenaclara (Lisín an Chláraigh) , Kilteskill Civil Parish, Barony of Loughrea, Co. Galway
- Lisheenacrannagh (Lisín na Cranncha) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Lisheenaguile (Lisín na Gaibhle) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Lisheenahevnia (Lisín na hAibhle) , Abbeygormacan Civil Parish, Barony of Leitrim, Co. Galway
- Lisheenakeeran (Lisín An Chaoráin) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Lisheenaleen (Lisín an Lín) , Kilteskill Civil Parish, Barony of Leitrim, Co. Galway
- Lisheenanoran (Lisín an Óráin) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Lisheenavalla (Lisín an Bhealaigh) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Lisheeneenaun East (Lios an Eidhneáin Thoir) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Lisheeneenaun West (Lios an Eidhneáin Thiar) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Lisheeneynaun (An Lisín) , Ardrahan Civil Parish, Barony of Loughrea, Co. Galway
- Lisheenielagaun (Lisín Niallagáin) , Moorgagagh Civil Parish, Barony of Kilmaine, Co. Mayo
- Lisheenkyle East (Lisín Coill Thoir) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Lisheenkyle West (Lisín Coill Thiar) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Lisheennagat (Lisín na gCat) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Lisheennageeha (Lisín na Gaoithe) , Killeany Civil Parish, Barony of Clare, Co. Galway
- Lisheennavannoge (Blake) (Lisín na bhFearnóg (Blake)) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Lisheennavannoge (Cloncarthy) (Lisín na bhFearnóg (Cloncarthy)) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Lisheen North (An Lisín Thuaidh) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Lisheen South (An Lisín Theas) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Lisheeny (Na Lisíní) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Liskeevy (Lios Ciabhaigh) , Liskeevy Civil Parish, Barony of Dunmore, Co. Galway
- Liskelly (Lios Ceallaigh) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Liskevin (Lios Caoimhín) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Lislaughera (Lios Lachaire) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Lismacteige (Lios Mhic Thaidhg) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Lismafadda (Lios Maí Fada) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Lismihil (Lios Michíl) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Lismore Demesne (An Lios Mór) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Lismoylan (Lios Maoláin) , Killinan Civil Parish, Barony of Dunkellin, Co. Galway
- Lismoyle (An Lios Maol) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Lisnadrisha (Lios na Drise) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Lisnagloos (Lios na gCluas) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Lisnagranshy (Lios na Gráinsí) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Lisnagry (Lios na Graí) , Leitrim Civil Parish, Barony of Leitrim, Co. Galway
- Lisnagyreeny (Lios na nGaidhríní) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Lisnamoltaun (Lios na bhFoltán) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Lispheasty (Lios Phiasta) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Lisrabirra (Lios Ráth Biorra) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Liss (An Lios) , Killeany Civil Parish, Barony of Clare, Co. Galway
- Liss (Lios an Choirthe) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Lissacullaun (Lios Uí Choileáin) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Lissacullaun (Lios Uí Choileáin) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Lissadoill (Lios an Daill) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Lissadulta (Lios an Dualtaigh) , Kilthomas Civil Parish, Barony of Kiltartan, Co. Galway
- Lissagurraun (Lios An Gharráin) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Lissaleen (Lios an Lín) , Kilbennan Civil Parish, Barony of Dunmore, Co. Galway
- Lissalondoon (Lios an Londúnaigh) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Lissalumma (Lios an Loma) , Abbeygormacan Civil Parish, Barony of Leitrim, Co. Galway
- Lissanacody (Lios an Acóidigh) , Donanaghta Civil Parish, Barony of Longford, Co. Galway
- Lissananny (Lios an Eanaigh) , Kilbennan Civil Parish, Barony of Dunmore, Co. Galway
- Lissanard East (Lios an Aird Thoir) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Lissanard West (Lios an Aird Thiar) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Lissaniska (Lios an Uisce) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Lissaniska (Lios an Uisce) , Abbeyknockmoy Civil Parish, Barony of Tiaquin, Co. Galway
- Lissaniska North (Lios an Uisce Thuaidh) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Lissaniska South (Lios an Uisce Theas) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Lissapharson (Lios an Phearsúin) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Lissaphuca (Lios an Phúca) , Kilmeen Civil Parish, Barony of Leitrim, Co. Galway
- Lissard (Lios Árd) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Lissareaghaun (Lios an Riacháin) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Lissarulla (Lios Arúla) , Baile Chláir Civil Parish, Barony of Dunkellin, Co. Galway
- Lissatunny (Lios an tSonnaigh) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Lissavahaun (Lios an Mheatháin) , Aughrim Civil Parish, Barony of Clonmacnowen, Co. Galway
- Lissawullaun (Lios an Mhulláin) , Killallaghtan Civil Parish, Barony of Clonmacnowen, Co. Galway
- Lissindragan (Lios Iondragáin) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Lissoughter (Lios Uachtair) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Lissymanny (Lios Maine) , Clontuskert Civil Parish, Barony of Longford, Co. Galway
- Little Bray (Bré Beag) , Old Connaught Civil Parish, Barony of Rathdown, Co. Wicklow
- Little Island (aka Little Isle) , Clondahorky Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Little Island (An tOileán Beag) , Kilnamanagh Civil Parish, Barony of Bear, Co. Cork
- Little Island, Kiltoom Civil Parish, Barony of Athlone, Co. Roscommon
- Little Island, Rathcline Civil Parish, Barony of Rathcline, Co. Longford
- Lobinish (Láibinis) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Lockstown Upper (Baile an Loig Uachtarach) , Hollywood Civil Parish, Barony of Lower Talbotstown, Co. Wicklow
- Lodge (An Lóiste) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Longford (An Longphort) , Tiranascragh Civil Parish, Barony of Longford, Co. Galway
- Long Island, St Peter's (part) Civil Parish, Barony of Athlone, Co. Roscommon
- Long Island (An tOileán Fada) , Kilnamanagh Civil Parish, Barony of Bear, Co. Cork
- Long Island (An tOileán Fada) , Ballyovey Civil Parish, Barony of Carra, Co. Mayo
- Long Island, Cill Imleach Civil Parish, Barony of Iveragh, Co. Kerry
- Long Island (Inis Fada) , Skull Civil Parish, Barony of West Carbery (West Division), Co. Cork
- Long Island, Meelick Civil Parish, Barony of Longford, Co. Galway
- Long Island, Tullyfern Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Long Island, Kiltoom Civil Parish, Barony of Athlone, Co. Roscommon
- Long Island, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Long Island, Lorrha Civil Parish, Barony of Lower Ormond, Co. Tipperary
- Long Island North (An tOileán Fada Thuaidh) , Cargin Civil Parish, Barony of Clare, Co. Galway
- Loobroe (An Lúb Rua) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Looscaun (An Luascán) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Loosky Island (Oileán Luascaí) , Turlough Civil Parish, Barony of Carra, Co. Mayo
- Loughaclerybeg (Loch an Chléirigh Beag) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Loughaconeera (Loch Con Aortha) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Loughanawadda (Lochán an Mhaide) , Kilthomas Civil Parish, Barony of Kiltartan, Co. Galway
- Loughandonning, St Mary's Civil Parish, Barony of Brawny, Co. Westmeath
- Loughanroe East (An Lochán Rua Thiar) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Loughanroe West (An Lochán Rua Thoir) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Loughanspark (Páirc Uí Lócháin) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Loughatorick North (Loch An Tóraic Thuaidh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Loughatorick South (Loch An Tóraic Theas) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Loughaun (An Lochán) , Kilteskill Civil Parish, Barony of Loughrea, Co. Galway
- Loughauna (Loch Ána) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Loughaunbeg (Lochán Beag) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Loughaunbrean (An Lochán Bréan) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Loughaunbrean (Lochán Bréan) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Loughaunenaghan (Lochán Éanacháin) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Loughaunnavaag (Lochán na bhFeag) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Loughawee (Loch a' Bhuídhe) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Loughbown (Loch Buan) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Loughburke (Loch an Bhúrcaigh) , Killinan Civil Parish, Barony of Loughrea, Co. Galway
- Loughcooter Demesne (Diméin Loch Cútra) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Loughcurra North (Loch Cora Thuaidh) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Loughcurra South (Loch Cora Theas) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Loughinch (Loch Inse) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Loughlackagh, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Loughlin Island, Tulacha Beigile Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Loughpark (Páirc an Locha) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Loughrea (Baile Locha Riach) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Loughturk East (Loch Tuirc Thoir) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Loughturk West (Loch Tuirc Thiar) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Lousy Castle Island (aka Lousycastle Island) , Kilmocomoge Civil Parish, Barony of Bantry, Co. Cork
- Low Island (An tOileán Íseal) , Islandeady Civil Parish, Barony of Carra, Co. Mayo
- Lowpark (An Bogán Mór) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Lowtown Kilcashel, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Lowville (Cluain Bigín) , Fohanagh Civil Parish, Barony of Kilconnell, Co. Galway
- Lue Island, Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Luggakeeraun (Log an Chaorthainn) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Lugganaffrin (Log an Oifrinn) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Lugganimma (Log An Ime) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Luggatarriff (Log a' Tairbh) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Luggawannia (Log an Bhainne) , Cargin Civil Parish, Barony of Clare, Co. Galway
- Luimnagh East (Luimneach Thoir) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Luimnagh West (Luimneach Thiar) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Lurga (An Lorgain) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Lurgabaun (An Lorga Bhán) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Lurgan (An Lorgain) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Lurgan (Lurgan) (aka Shindilla and Sindile) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Lurgan (An Lorgain) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Lurgan Beg (An Lorgain Bheag) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Lurgan Great (An Lorgain Mhór) , Killallaghtan Civil Parish, Barony of Clonmacnowen, Co. Galway
- Lurgan Little (An Lorgain Bheag) , Killallaghtan Civil Parish, Barony of Clonmacnowen, Co. Galway
- Lurgan More (An Lorgain Mhór) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Lurganshanny (Lorgain Seanaidh) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Lyalbeg (Laigheall Beag) (aka Lyal Beg) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Lyalmore (Laigheall Mór) (aka Lyal More) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Lydacan (An Laighdeacán) , Ardrahan Civil Parish, Barony of Kiltartan, Co. Galway
- Mace (An Más) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Mace (An Más) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Mackney, Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Mackney, Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Mackney Clancarty (Meacnaigh Clancarty) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Mackney Kelly (Meacnaigh Kelly) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Magherabeg (An Machaire beag) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Magheramore (An Machaire Mór) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Magheramore (An Machaire Mór) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Magheranearla (Machaire an Iarla) , Tiranascragh Civil Parish, Barony of Longford, Co. Galway
- Magheranerla, St Mary's Civil Parish, Barony of Brawny, Co. Westmeath
- Malthooa (An Meall Thuaidh) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Mannin (Manainn) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Manninard (Manainn Ard) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Manninbeg (Manain Beag) (aka Mannin Beg) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Mannin Island (Manainn) , Kilcoe Civil Parish, Barony of West Carbery (West Division), Co. Cork
- Manninmore (Manain Mór) (aka Mannin More) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Manuslynn (Maigh Leasa Fhlainn) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Maquin's Island (aka Maquins Island) , Killaspugbrone Civil Parish, Barony of Carbury, Co. Sligo
- Marblehill (An Creigín) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Marshallspark (Páirc an Mharascalaigh) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Masonbrook (Baile na gCnocán) , Kilteskill Civil Parish, Barony of Loughrea, Co. Galway
- Mason Island (Oileán Máisean) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Mattle Island, Kilmurry Civil Parish, Barony of Ibrickan, Co. Clare
- Maum (An Mám) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Maumeen (An Máimín) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Maumfin (Mám Fionn) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Maumgawnagh (Mám Gamhna) , Ross Civil Parish, Barony of Ross, Co. Galway
- Maumtrasna (Mám Trasna) , Ross Civil Parish, Barony of Ross, Co. Mayo
- Maum West (An Mám Thiar) (aka Maam West) , Ross Civil Parish, Barony of Ross, Co. Galway
- Mausrevagh (An Más Riabhach) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Maw (Magh) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Meanus (Méanas) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Mearing Island, Ballintober Civil Parish, Barony of Carra, Co. Mayo
- Meashy More (aka Carricknashee) , Inishkeel Civil Parish, Barony of Boylagh, Co. Donegal
- Meelick (Míleac) , Crossboyne Civil Parish, Barony of Clanmorris, Co. Mayo
- Meelick (Míleac) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Meeneen (Minín) , Fahy Civil Parish, Barony of Longford, Co. Galway
- Meheranspark (Páirc Uí Mheithearáin) , Isertkelly Civil Parish, Barony of Loughrea, Co. Galway
- Menlough (Mionlach) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Merlin Park (Páirc Mhuirlinne) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Middle Island (Oileán Láir) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Middlequarter (An Cheathrú Láir) , Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Milestone (Cloch an Mhíle) , St Nicholas Civil Parish, Barony of Galway, Co. Galway
- Millpark (Machaire an Iúir) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Millpark (Gort an Mhuilinn) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Millpark (Páirc an Mhuilinn) , Ross Civil Parish, Barony of Ross, Co. Galway
- Millplot (Preabán an Mhuilinn) (aka Mill Plot) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Milltown (Baile an Mhuilinn) , Addergoole Civil Parish, Barony of Dunmore, Co. Galway
- Mincloon (Mionchluain) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Mira (Meidhre) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Mirehill (Baile an Lábáin) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Moanbaun (An Mhóin Bhán) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Moannakeeba East (Moing na Cíbe Thoir) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Moannakeeba West (Moing na Cíbe Thiar) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Moat (An Móta) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Moat (An Móta) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- Moaty (An Móta) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Moaty (Na Mótaí) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Mocollagan (Maigh Chalgaigh) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Mocorha (Maigh Chartha) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Moher (An Mothar) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Mointiagh North (An Móinteach Thuaidh) , Baile Chláir Civil Parish, Barony of Clare, Co. Galway
- Monambraher (Móin na mBráthar) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Monard (An Mhóin Ard) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Monearmore (Móinéar Mór or An Móinéar Mór) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Monearmore (An Móinéar Mór) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Moneen (An Móinín) , Cummer Civil Parish, Barony of Clare, Co. Galway
- Moneenaheeltia (Móinín an Choillte) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Moneenaveena (Móinín an Mhianaigh) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Moneen East (An Móinín Thoir) , Ardrahan Civil Parish, Barony of Loughrea, Co. Galway
- Moneen West (An Móinín Thiar) , Ardrahan Civil Parish, Barony of Loughrea, Co. Galway
- Moneybeg Island (An Muine Beag) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Moneyduff (An Móinéar Dubh) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Moneymore East (An Muine Mór Thoir) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Moneymore West (An Muine Mór Thiar) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Moneyscreebagh (Muine Scríobach) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Moneyteige (Muine Thaidhg) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Moneyveen (Muine Mhín) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Monksfield (Fearann na Manach) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Monks Island, Calry Civil Parish, Barony of Carbury, Co. Sligo
- Monroe (An Mhóin Rua) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Montiagh South (An Móinteach Theas) , Baile Chláir Civil Parish, Barony of Dunkellin, Co. Galway
- Montpelier (Montpelier) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Moor (An Múr) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Moor (An Múr) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Moore North (An Múr Thuaidh) , Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Moore South (An Múr Theas) , Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Moorfield (Gort na Móna Thoir) , Fahy Civil Parish, Barony of Longford, Co. Galway
- Moorfield or Gortnamona (Gort na Móna) , Fahy Civil Parish, Barony of Longford, Co. Galway
- Moorfield or Gortnamona (Gort na Móna) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Moorgagagh (An Múr Gágach) , Moorgagagh Civil Parish, Barony of Kilmaine, Co. Mayo
- Moor Islands (Oileán an Fhraoigh) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Moorneen (Múirnín) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Morgans Island (Oileán Mhorgan) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Mountain (An Sliabh) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Mountain North (An Sliabh Thuaidh) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Mountainpark (Páirc an tSléibhe) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Mountain South (An Sliabh Theas) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Mountain West (An Sliabh Thiar) , Athenry Civil Parish, Barony of Dunkellin, Co. Galway
- Mountbrowne (Cnocán an Bhrúnaigh) , Abbeyknockmoy Civil Parish, Barony of Clare, Co. Galway
- Mountgarret (Cnoc Ghearóid) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Mounthenry (Moin Anraí) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Mountpleasant (An Lochán) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Mountross (Ros Iarainn) (aka Rosskeerhaun) , Killeany Civil Parish, Barony of Clare, Co. Galway
- Moy (An Mhaigh) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Moyard (Magh Árd) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Moyarwood (Maigh Armhad) , Ballymacward Civil Parish, Barony of Kilconnell, Co. Galway
- Moycola (Maigh Chomhla) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Moycullen (Maigh Cuilinn) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Moyglass (Maigh Ghlas) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Moyhastin (Maigh Aistín) , Aghagower Civil Parish, Barony of Burrishoole, Co. Mayo
- Moylanboy, Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Moylaun Island, Kilcrohane Civil Parish, Barony of Dunkerron South, Co. Kerry
- Moyne (Maighean) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Moynish Beg (Maínis Beag) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Moyode (Maigh Fhód) , Kilconierin Civil Parish, Barony of Athenry, Co. Galway
- Moyode Demesne (Diméin Mhaigh Fhód) , Kilconierin Civil Parish, Barony of Athenry, Co. Galway
- Moyower (Maigh Odhar) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Moyrus (Maíghros) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Moyveela (Maigh Mhaola) , Stradbally Civil Parish, Barony of Dunkellin, Co. Galway
- Moyveela (Maigh Mhaola) , Athenry Civil Parish, Barony of Dunkellin, Co. Galway
- Moyvoon East (Maigh Mhaon Thoir) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Moyvoon West (Maigh Mhaon Thiar) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Muckanagh (Muiceanach) , Fahy Civil Parish, Barony of Longford, Co. Galway
- Muckanaghederdauhaulia (Muiceanach idir Dhá Sháile or Muicíneach idir Ddá Sháile) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Muckcoort (Mucúrt) , Killeany Civil Parish, Barony of Clare, Co. Galway
- Muckinish (Muicinis) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Muck Island (An Mhuc) , Kilmactranny Civil Parish, Barony of Tirerrill, Co. Sligo
- Muckrush (Mucrois) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Muckrussaun (Mucrosán) , Ballinchalla Civil Parish, Barony of Kilmaine, Co. Mayo
- Muggaunagh (Mongánach) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Muiceanach Choille (Muiceanach Choille) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Muing (An Mhoing) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Muingbaun (An Mhoing Bhán) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Muingerroon Island (Oileán Mhoing Eiriún) , Kilcommon Civil Parish, Barony of Erris, Co. Mayo
- Mullagh (An Mullach) , Kilbennan Civil Parish, Barony of Dunmore, Co. Galway
- Mullaghadrum (Mullach an Droma) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Mullagh Beg (An Mullach Beag) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Mullaghglass (Mullach Glas) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Mullagh More (An Mullach Mór) , Abbeygormacan Civil Parish, Barony of Longford, Co. Galway
- Mullaghruttery (Mullach Otraigh) , Baile Chláir Civil Parish, Barony of Clare, Co. Galway
- Mulpit (Mul Péat) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Mulroney's Island (Oileán Mhaol Rúnaigh) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Mulroog East (Maolrúg Thoir) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Mulroog West (Maolrúg Thiar) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Munga (Monga) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Munterowen East (Muintir Eoghain Thoir) , Ross Civil Parish, Barony of Ross, Co. Galway
- Munterowen Middle (Muintir Eoghain Láir) , Ross Civil Parish, Barony of Ross, Co. Galway
- Munterowen West (Muintir Eoghain Thiar) (aka Muntierowen West) , Ross Civil Parish, Barony of Ross, Co. Galway
- Murragh, Meelick Civil Parish, Barony of Longford, Co. Galway
- Murrough (Muirbheach) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Murvagh Island (Muirbheach) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Murvey (Muirbhigh) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Mutton Island (Oileán Inse Caorach) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Mutton Island (Oileán Moilt) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Mweelawn Island, Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Mweelchara Island, Clondahorky Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Mweelin (Maoilinn) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Mweelin (An Mhaoilinn) , Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Mweeloon (Maolún) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Mweenisharan (aka Mweenisharan Island) , Drumacoo Civil Parish, Barony of Dunkellin, Co. Galway
- Mweenish Island (Maínis) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Mweenish Island (Maínis or Oileán Mháinse) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Na Doiriú Theas (Na Doiriú Theas) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Nail (An Ionga) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Na Mine (Na Mine) (aka Minne) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Newcastle (Caisleán Nua) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Newcastle (Caisleán Nua) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- Newcastle (An Caisleán Nua) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Newcastle (An Caisleán Nua) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Newford (An tÁth Nua) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Newgrove (An Cheathrú Bhuí) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Newhall (An Halla Nua) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Newtown, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Newtown (An Baile Nua) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Newtown (An Balie Nua) , Kilmalinoge Civil Parish, Barony of Longford, Co. Galway
- Newtown (An Baile Nua) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Newtown (An Baile Nua) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Newtownblake (Baile Nua an Bhlácaigh) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Newtownbracklagh (Baile Nua na Breaclaí) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Newtowneyre (An Baile Nua) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Newtown (Glynn) (An Baile Nua (Glynn)) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Newtown Kilcashel, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Newtown Kilcolgan (Baile Nua Chill Cholgáin) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Newtown North (An Baile Nua Thuaidh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Newtown (Regan) (An Baile Nua (Regan)) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Newtown South (An Baile Nua Theas) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Newvillage (An Baile Nua) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Nineacres (Naoi nAcra) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Normangrove (Áit Tí Dóite) , Killinny Civil Parish, Barony of Kiltartan, Co. Galway
- Northampton (Poll na bhFia Thiar) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Northbrook (Garraí an Átháin) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- North Island (An tOileán ó Thuaidh) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Nunsacre (Acra na mBan Rialta) (aka Nuns Acre) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Nut Island (Oileán na gCnó) , Cashel Civil Parish, Barony of Rathcline, Co. Longford
- Nymphsfield (Gort na Caillí) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Oatfield (Corr an Choirce) , Aughrim Civil Parish, Barony of Kilconnell, Co. Galway
- Oddacres (Na hAcraí Corra) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- O'Donnells Island, Donegal Civil Parish, Barony of Tirhugh, Co. Donegal
- Oghery (Eochaire) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Oghil (Eochaill) , Árainn Civil Parish, Barony of Aran, Co. Galway
- Oghil Beg (Eochaill Bheag) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Oghilly (Eochaillí) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Oghil More (Eochaill Mhór) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Oghly, Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Ogúil (Ogúil) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Oileán an Aoil (Oileán an Aoil) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Oileán an Aoil Thiar (Oileán an Aoil Thiar) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Oileán Bó (Oileán Bó) , Tulacha Beigile Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Oileán na gCoiníní (Oileán na gCoiníní) (Island) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Oldcastle (An Seanchaisleán) (aka Great Bawn) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Old Connaught (Seanchonach) (aka Oldconnaught) , Old Connaught Civil Parish, Barony of Rathdown, Co. Wicklow
- Oldstreet (An tSeantsráid) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Oldtown Kilcashel, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Oltore (Olltóir) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Onaght (Eoghanacht) , Árainn Civil Parish, Barony of Aran, Co. Galway
- Oorid (Uraid) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Oranbeg (Uarán Beag) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Oranhill (Cnoc Odhráin) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Oranhill (Cnoc Óráin) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Oranmore (Uarán Mór) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Orchard Island, Ardcarn Civil Parish, Barony of Boyle, Co. Roscommon
- Ordnance Ground (An Campa) (aka Barracks) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Ormond's Island (Oileán Urumhan) , Tuosist Civil Parish, Barony of Glanarought, Co. Kerry
- Otter Island (Oileán an Mhadra Uisce) , Burriscarra Civil Parish, Barony of Carra, Co. Mayo
- Oultort (Olltóir) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Owenavaddy (Abhainn an Mhaide) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Owenbristy (Uaimhin Bhriste) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Ower (Odhar) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Ower (An tObhar) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Oxgrove (Garrán an Daimh) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Ox Island (Damhoileán Beag) , Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Oyster Island (Oileán na nOisrí) , Killaspugbrone Civil Parish, Barony of Carbury, Co. Sligo
- Pallas (An Phailís) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Pallas (An Phailís) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Palmerstown (Baile na bhFalmairí) , Athenry Civil Parish, Barony of Dunkellin, Co. Galway
- Park (An Pháirc) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Park (An Pháirc) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Park (An Pháirc) , Kilbennan Civil Parish, Barony of Dunmore, Co. Galway
- Park (An Pháirc) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Park (An Pháirc) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Park (An Pháirc or Cloch na Páirce) , Killallaghtan Civil Parish, Barony of Clonmacnowen, Co. Galway
- Parkagarraun (Páirc an Gharráin) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Parkaloughan (Páirc an Locháin) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Parkanallacan (Páirc an Allacáin) , Kilcoona Civil Parish, Barony of Clare, Co. Galway
- Parkatleva (Páirc an tSléibhe) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Parkbaun (An Pháirc Bhan) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Parkeighter (An Pháirc Íochtair) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Parkgarve (An Pháirc Gharbh) (aka Coarsepark) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Parkgarve (An Pháirc Gharbh) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Parkgarve (An Pháirc Gharbh) , Kilmoylan Civil Parish, Barony of Clare, Co. Galway
- Parkmore (An Pháirc Mhór) , Tuam Civil Parish, Barony of Clare, Co. Galway
- Parkmore, Creagh Civil Parish, Barony of Moycarn, Co. Galway
- Parkmore, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Parkmore (An Pháirc Mhór) , St Nicholas Civil Parish, Barony of Galway, Co. Galway
- Parknahown (Páirc na hAbhann) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Parkroe (An Pháirc Rua) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Parkroe (An Pháirc Rua) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Parkroe (An Pháirc Rua) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Parkroe (An Pháirc Rua) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Parkroe (An Pháirc Rua) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Parsons Island (Oileán an Phearsúin) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Patches (Paistídhe) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Peak (An Phéic) , Baile Chláir Civil Parish, Barony of Clare, Co. Galway
- Peakroe (An Phéic Rua) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Perssepark (Páirc an Phiarsaigh) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Piggots Island, Kilcornan Civil Parish, Barony of Kenry, Co. Limerick
- Pig Island (Oileán na Muice) , Ballyovey Civil Parish, Barony of Carra, Co. Mayo
- Pig Island (Oileán na Muice) , Kilcommon Civil Parish, Barony of Erris, Co. Mayo
- Point (Pointe Charraig an Rois) , Killaghtee Civil Parish, Barony of Banagh, Co. Donegal
- Pollacappul (Poll an Chapaill) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Pollacappul (Poll a' Chapaill) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Pollacorragune (Poll an Chorraigiúin) , Kilbennan Civil Parish, Barony of Dunmore, Co. Galway
- Pollacossaun Eighter (Poll an Chosáin Íochtair) , Cummer Civil Parish, Barony of Clare, Co. Galway
- Pollacossaun Oughter (Poll an Chosáin Uachtair) , Cummer Civil Parish, Barony of Clare, Co. Galway
- Pollacullaire (Poll an Choiléir) (aka Quarryhole) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Pollacurra (Poll an Churraigh) , Ardrahan Civil Parish, Barony of Loughrea, Co. Galway
- Pollagh (An Pollach) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Pollagh (An Pollach) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Pollagh (An Pollach) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Pollagh (Na Pollacha) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Pollagh (An Pollach) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Pollagh (An Pollach) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Pollagh (An Pollach) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Pollaghrevagh (An Pollach Riabhach) , Baile Chláir Civil Parish, Barony of Dunkellin, Co. Galway
- Pollagooil (Poll an Ghuail) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Pollataggle (Poll an tSeagaill) , Ardrahan Civil Parish, Barony of Kiltartan, Co. Galway
- Pollatlugga (Poll an tSlogtha) , Killallaghtan Civil Parish, Barony of Clonmacnowen, Co. Galway
- Pollaturick (Poll a tSiúraic) , Addergoole Civil Parish, Barony of Dunmore, Co. Galway
- Pollaturk (Poll an Toirc) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Pollavullaun (Poll an Bhalláin) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Pollboy, Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Pollboy, Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Polldarragh (Poll Darach) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Polldonoghoe (Poll Uí Dhonncha) , Ardrahan Civil Parish, Barony of Kiltartan, Co. Galway
- Polleeny (Na Poillíní) , Rahoon Civil Parish, Barony of Moycullen, Co. Galway
- Polleha (Poille) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Pollfeeneen (Poll Fínín) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Pollkeen (An Poll Caoin) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Pollnabanny (Poll na Báine) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Pollnabunny (Poll na Buinní) , Kilmainebeg Civil Parish, Barony of Kilmaine, Co. Mayo
- Pollnaclogh (Poll na Cloiche) (aka Pollnaclocha) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Pollnagarragh East (Poll na gCarrach Thoir) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Pollnagarragh West (Poll na gCarrach Thiar) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Pollnagroagh (Poll na gCruach) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Pollnahallia (Poll na hAille) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Pollnahincha (Poll na hInse) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Pollnamal (Poll na Meall) , Killower Civil Parish, Barony of Clare, Co. Galway
- Pollnamal (Poll na Meall) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Pollnarooma East (Poll na Ruama Thoir) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Pollnarooma West (Poll Na Róna) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Pollnashinnagh (Poll na Sionnach) , Killinan Civil Parish, Barony of Dunkellin, Co. Galway
- Pollnaveagh (Poll na bhFia) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Pollrevagh (Poll Riabhach) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Pollroebuck (Poll Robac) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Pollsillagh (Poll Saileach) , Kilmoylan Civil Parish, Barony of Clare, Co. Galway
- Polltalloon East (Poll Talúin Thoir) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Polltalloon West (Poll Talúin Thiar) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Poppyhill (Poppyhill) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Poppyhill (Poppyhill) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Porridgetown East (Cnoc an Bhracháin Thoir) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Porridgetown West (Cnoc an Bhracháin Thiar) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Portacarron (Port an Chairrín) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Portacarron Beg (Port an Chairrín Beag) (aka Portacarronbeg) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Portdarragh (Port Darach) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Port Island (Oileán an Phoirt) , Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Portland Island, Lorrha Civil Parish, Barony of Lower Ormond, Co. Tipperary
- Portnick, Creagh Civil Parish, Barony of Moycarn, Co. Galway
- Portumna (Port Omna) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Portumna Demesne (Diméin Phort Omna) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Potatoe Islands (Oileáin Fhataí) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Poundcartron (Cartrún an Phóna) (aka Pound Cartron) , Ross Civil Parish, Barony of Ross, Co. Galway
- Pribbaun (An Preabán) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Priest Island (Oileán an tSagairt) , Burriscarra Civil Parish, Barony of Carra, Co. Mayo
- Priest's Island, Cashel Civil Parish, Barony of Rathcline, Co. Longford
- Priests Island (Oileán an tSagairt) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Prospect (Geata an Láithrigh) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Prospect (Prospect) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Prospect Demesne (Prospect) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Prospect Hill (Cnoc an Radhairc) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Puck Island (Oileán an Phocaide) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Quarryhill (An Seanbhaile Ard) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Rabbit Island, Kilmocomoge Civil Parish, Barony of Bantry, Co. Cork
- Rabbit Island (Oileán na gCoiníní) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Rabbit Island, Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Rabbit Island (Oileán Rois Bhig) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Rabbit Island (Oileán na gCoiníní) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Rabbit Island (Oileán na gCoinín) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Racecourse (Cúrsa an Rása) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Racepark (Páirc na Rásaí) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Racoona (Ráth Chuanna) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Radullaan (Ráth Dalláin) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Rafarn (Rath Bhairinn) , Kilmeen Civil Parish, Barony of Leitrim, Co. Galway
- Rafarn (Rath Bhairinn) , Leitrim Civil Parish, Barony of Leitrim, Co. Galway
- Raford (Ráth na Fulrachta) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Rafwee (Rath Bhoidhbh) , Killeany Civil Parish, Barony of Clare, Co. Galway
- Raghrabeg, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Raha (An Rátha) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Rahally (Ráth Chalaidh) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Rahaly (Rath Alla) , Kilthomas Civil Parish, Barony of Kiltartan, Co. Galway
- Rahaneena (Rahaneena) , Stradbally Civil Parish, Barony of Dunkellin, Co. Galway
- Rahard (An Ráth Ard) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Rahasane (Ráth Asáin) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Raheen (An Ráithín) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Raheen (An Ráithín) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Raheen (An Ráithín) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Raheen (An Raithín) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Raheen Demesne (An Ráithín) , Ardrahan Civil Parish, Barony of Kiltartan, Co. Galway
- Raheen Eighter (An Ráithín Íochtarach) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Raheen Kilkelly (An Raithín (Kilkelly)) , Ardrahan Civil Parish, Barony of Kiltartan, Co. Galway
- Raheen Oughter (An Ráithín Uachtarach) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Raherneen (Ráth Eirnín) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Rahoon (Rathún) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Rahyconor (Rath Uí Chonchúir or Rath Uí Chonchubhair) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Rahylin Glebe (Rath Uilinn) , St Nicholas Civil Parish, Barony of Galway, Co. Galway
- Raigh (Raith) , Ross Civil Parish, Barony of Ross, Co. Galway
- Rakerin (Rath Chéirín) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Ralusk (Ráth Lusca or Ráth Loiscthe) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Ramolin (Rath Molaing) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Rams Island (Inis Reithe) (aka Inishraha) , Ross Civil Parish, Barony of Ross, Co. Mayo
- Ranaghmore Island, Tulacha Beigile Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Ranamackan (Ráth na Meacan) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Raruddy East (Ráth Rodaigh Thoir) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Raruddy West (Ráth Rodaigh Thiar) , Kilconickny Civil Parish, Barony of Loughrea, Co. Galway
- Rathanlon (Rath Anluain) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Rathbaun (An Rath Bán) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Rathcosgry (Ráth Choscraigh) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Rathfee (Ráth Bhoidhbh) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Rathglass (An Ráth Glas) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Rathgorgin (Ráth Ghoirrgín) , Kilconierin Civil Parish, Barony of Athenry, Co. Galway
- Rathmoreahanduff (Ráth Mór an Átháin Dhuibh) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Rathmore Demesne (An Ráth Mór) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Rathmorrissy (Ráth Mhuirisín) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Rathmoyle (An Rath Maol) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Rathpeak, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Rathwilladoon (Ráth Mhaoile Dúin) (aka Raheen) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Ravenswell, Old Connaught Civil Parish, Barony of Rathdown, Co. Wicklow
- Rayhill (An Réchoill) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Rayrawer (An Ré Ramhar) , Kilthomas Civil Parish, Barony of Kiltartan, Co. Galway
- Reaghan (Réachán) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Reask (Na Riascacha) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Reask (An Riasc) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Reaskgarriff (An Riasc Garbh) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Reaskmore (Riascach Mór) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Reaskmore (An Riasc Mór) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Red Island (An tOileán Rua) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Red Island, Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Red Island, Inishcaltra Civil Parish, Barony of Tulla Upper, Co. Clare
- Red Island (An tOileán Rua) , Ross Civil Parish, Barony of Ross, Co. Galway
- Red Island, Cashel Civil Parish, Barony of Rathcline, Co. Longford
- Red Island, Cashel Civil Parish, Barony of Rathcline, Co. Longford
- Red Island (Rua-Oileán) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Red Island, Clondahorky Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Redpark (Redpark) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Reennafardarrig (Rinn na bhFear Dearg) , Killiney Civil Parish, Barony of Corkaguiny, Co. Kerry
- Renmore (An Rinn Mhór) (aka Rinmore) , St Nicholas Civil Parish, Barony of Galway, Co. Galway
- Renville East (An Rinn Mhíl Thoir) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Renville West (An Rinn Mhíl Thiar) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Retreat (An Díthreabh) , St Mary's Civil Parish, Barony of Brawny, Co. Westmeath
- Reynabrone (Ré na Brón) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Reynclamper (Ré an Chlampair) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Ricks Island (Oileán Riocard) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Rindifin (Rinn Daibhchín) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Ringeelaun (Rinn Ghiolláin) , Drumacoo Civil Parish, Barony of Dunkellin, Co. Galway
- Rinn (An Rinn) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Rinn (An Rinn) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Rinnaharney (Rinn na hAirne) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Rinnaknock (Rinn an Chnoic) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Rinneen (An Rinnín) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Rinneen (An Rinnín) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Rinnerroon (Rinn Oiriún) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Rinrainy Island (Rinn Raithní) , Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Rinrush (Roinn Rois) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- River Island, Ballinrobe Civil Parish, Barony of Kilmaine, Co. Mayo
- Roancarrick Island, Inishkeel Civil Parish, Barony of Boylagh, Co. Donegal
- Roaninish (Róninis) (aka Roaninish Island) , Inishkeel Civil Parish, Barony of Boylagh, Co. Donegal
- Rockfield (Gort na Carraige) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Rockhill (Cnoc na Carraige) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Rockingham Demesne, Kilbryan Civil Parish, Barony of Boyle, Co. Roscommon
- Rockingham Demesne, Kilbryan Civil Parish, Barony of Boyle, Co. Roscommon
- Rock Island (Oileán Iarthach) , Árainn Civil Parish, Barony of Aran, Co. Galway
- Rocklands (Fearann na Carraige) , Oranmore Civil Parish, Barony of Dunkellin, Co. Galway
- Rockpark (Gort na Cloiche) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Rockshire, Kilculliheen Civil Parish, Barony of Kilculliheen, Co. Waterford
- Rockwood (Coill na Carraige) , Baile Chláir Civil Parish, Barony of Dunkellin, Co. Galway
- Roeillan (Rua-oileán) , Oughaval Civil Parish, Barony of Murrisk, Co. Mayo
- Roeillan (Rua-oileán) , Achill Civil Parish, Barony of Burrishoole, Co. Mayo
- Roeillaun (Rua Oileán) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Roeillaun (Rua-oileán) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Roeillaun (Rua Oileán) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Roeillaun (Rua-Oileán) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Roeillaun, Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Roeillaun, Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Roeillaunbaun, Cong Civil Parish, Barony of Ross, Co. Galway
- Roeillaundoo, Cong Civil Parish, Barony of Ross, Co. Galway
- Roe Island (Rua-oileán) , Crossmolina Civil Parish, Barony of Tirawley, Co. Mayo
- Roevehagh (An Ruabheitheach) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Roo (An Rú or Rua) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Roo (An Rú or Rua) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Rooaun, Creagh Civil Parish, Barony of Moycarn, Co. Galway
- Rooaun (An Ruán) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Rooaun (An Ruán) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Rooaunalaghta (Ruán an Leachta) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Rooaun Bog and Meadow, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Rooaunmore (An Ruán Mór) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Roo Demesne (An Rú) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Rooghan (Ruachán) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Rooghaun (Ruachán) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Rooney's Island (Oileán Uí Ruanaí) (aka Rooneys Island) , Drumhome Civil Parish, Barony of Tirhugh, Co. Donegal
- Rooty, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Roscahill East (Ros Cathail Thoir) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Roscam (Ros Cam) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Roscrea (Ros Cré) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Roshin Island, Donegal Civil Parish, Barony of Tirhugh, Co. Donegal
- Roskeeda (Ros Cíde) (aka Rosskeeda) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Rosleague (Ros Liag) (aka Ross League) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Roslynagh Island (Ros Laighneach) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Rosmuck (Rosmuc) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Rosmurrevagh Island (aka Rosmurrevagh) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Rosroe (An Ros Rua) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Rosroe (An Ros Rua) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Ross (An Ros) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Ross (Ros) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Ross (An Ros or Mainistir An Rois) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Rossadillisk (Ros an Duillisc) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Rossaveel (Ros an Mhíl) (aka Rossaveal) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Rosscahill West (Ros Cathail Thiar) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Ross Demesne (An Ros) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Rossdoo Island (Ros Dubh) (aka Ross Dhu) , Killymard Civil Parish, Barony of Banagh, Co. Donegal
- Rosseeshal (An Ros Íseal) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Rosshill (Cnoc Rois) , Ross Civil Parish, Barony of Ross, Co. Galway
- Rossmore (Ros Mór) (aka Rosmore) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Rossroe Island (An Ros Rua) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Rostollus (Ros Dolas or Ros an tSolais) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Rosturra (Rod Dora) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Rotten Island (An tOileán Bréan) , Upper Killybegs Civil Parish, Barony of Banagh, Co. Donegal
- Rough Island, Tullyfern Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Roundfield (Gort an Chaorthainn) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Roundstone (Cloch na Rón) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Roxborough (Roxborough) , Killinan Civil Parish, Barony of Loughrea, Co. Galway
- Roymore (An Rath Mhór) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Rusheen (An Roisín) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Rusheenduff (Roisín Dubh) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Rusheen Island (Roisín) , Kilmore Civil Parish, Barony of Erris, Co. Mayo
- Rusheennacholla (Roisín an Chalaidh) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Rusheennamanagh (Roisín na Mainiach) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Rusheen (Omey) (Ruisín) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Rusheens North (Na Roisíní Thuaidh) , Tuam Civil Parish, Barony of Clare, Co. Galway
- Rusheens South (Na Roisíní Theas) , Tuam Civil Parish, Barony of Clare, Co. Galway
- Rusheeny (Na Roisíní) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Rusheeny (Na Roisíní) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Rusheenyvulligan (Roisín an Bholgáin) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Rushveala (Rois Bhéala) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Russaun (An Rosán) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Saintclerans (Díseart Cléircheáin) (aka Saint Clerans) , Lickerrig Civil Parish, Barony of Dunkellin, Co. Galway
- Saintellen (Baile San Éilean) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Saints Island (Eachinis) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Saints Island (Inis Na Naomh) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Sally Island (Oileán Sailí) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Salrock (Sal Roc) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Sand Island, Cashel Civil Parish, Barony of Rathcline, Co. Longford
- Sand Island, Inishkeel Civil Parish, Barony of Banagh, Co. Donegal
- Sawnagh (Samhnacha) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Scalp (An Scailp) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Scalp (An Scailp) , Ardrahan Civil Parish, Barony of Loughrea, Co. Galway
- Scarriff (An Scairbh) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Scrahallia (Sraith Sháile) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Scurlocksleap (Léim an Scorlógaigh) , KIlbride Civil Parish, Barony of Lower Talbotstown, Co. Wicklow
- Seafield (Páirc Na Mara) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Seal Island, Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Seanadh Dolacháin (Seanadh Dolacháin) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Seanadh Phéistín (Seanadh Phéistín) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Seanbhaile Chathail (Seanbhaile Chathail) , Ballinchalla Civil Parish, Barony of Ross, Co. Mayo
- Seapoint (Rinn Na Mara) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Sedgy Island, Kiltoom Civil Parish, Barony of Athlone, Co. Roscommon
- Seecon (Suí Con) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Seefin (Suidhe Fionn or Suí Fionn) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Seershin (An tSaoirsin) , Rahoon Civil Parish, Barony of Moycullen, Co. Galway
- Serough Island (An Searrach) , Kilnamanagh Civil Parish, Co. Cork
- Shanadullaun (Seanadh Doláin) , Ross Civil Parish, Barony of Ross, Co. Galway
- Shanafaraghaun (Seanadh Farracháin) , Ross Civil Parish, Barony of Ross, Co. Galway
- Shanakeever (Seana Ciamhair) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Shanaveag (Seana Mheidhg) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Shanballard (An Seanbhaile Ard) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Shanbally (An Seanbhaile) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Shanbally (An Seanbaile) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Shanbally (An Seanbhaile) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Shanbally (An Seanbhaile) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Shanbally (An Seanbhaile) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Shanbally (An Bhuaile Ghlas) (aka Greenfield) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Shanballycolman (Seanbhaile Uí Chlúmháin) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Shanballyduff (An Sean Bhaile Dubh) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Shanballyeeshal (An Seanbhaile Íseal) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Shanballymore (An Seanbhaile Mór) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Shanballymore (Sean-Bhaile Mór) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Shanboley, Ahascragh Civil Parish, Barony of Clonmacnowen, Co. Galway
- Shanboolard (Sean Bhuaile Árd) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Shanclogh (An tSeanchloch) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Shancloon (An tSeanchluain) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Shangarry (An Seangharraí) , Abbeygormacan Civil Parish, Barony of Leitrim, Co. Galway
- Shangarry (An Seangharraí) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Shangorman Island, Ballinrobe Civil Parish, Barony of Kilmaine, Co. Mayo
- Shangort (Seanghort) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Shankill (Seanchill) , KIlbride Civil Parish, Barony of Lower Talbotstown, Co. Wicklow
- Shankill (An tSeanchill) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Shannadonnell (Seana Dhomhnaill) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Shannafreaghoge (Seanadh Fhraochóg) , Rahoon Civil Parish, Barony of Moycullen, Co. Galway
- Shannagurraun (Seanadh Gharráin) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Shannakeela (Seana Chaola) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Shannanagower (Seana na n-Gabhar) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Shannaunnafeola (Seanán na Feóla) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Shannavara (Seana Bheártha) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Shannawagh (Seana Mhach) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Shannawirra (Seanadh Bhuire) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Shannawona (Seanabhán) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Shannawoneen (Seanagh Mhóinín) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Shantallow (Seantalamh) (aka Shantalla) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Shantallow (Sean Talamh) , Abbeyknockmoy Civil Parish, Barony of Tiaquin, Co. Galway
- Shantallow (Seantalamh) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Shantallow (Seantalamh) , Athenry Civil Parish, Barony of Dunkellin, Co. Galway
- Shanvally (An Seanbhaile) , Kilthomas Civil Parish, Barony of Kiltartan, Co. Galway
- Shanvally (An Seanbhaile) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Shanvallybeg (An Baile Beag) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Shanvoher (An Seanbhóthar) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Shanvoley (An tSeanbhuaile) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Sheeaun (Sidheán or An Sián) , Kilmalinoge Civil Parish, Barony of Longford, Co. Galway
- Sheeaun (An Sián or Sidheán) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Sheeaun (Kiltartan) (An Suíochán) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Sheeaunpark (An Sián) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Sheeaunrush (Sidheán Rois or Sián Rois) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Sheeauns (Na Síodháin) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Shessanagirba (Seiseadh na Geirbe) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Shessareagh (An Seiseadh Riabhach) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Shessy North (An Seiseadh Thuaidh) , Ardrahan Civil Parish, Barony of Kiltartan, Co. Galway
- Shessy South (An Seiseadh Theas) , Ardrahan Civil Parish, Barony of Kiltartan, Co. Galway
- Shigaunagh (Seangánach) , Killinny Civil Parish, Barony of Kiltartan, Co. Galway
- Shinnanagh (Sionnanach) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Shintilla Island (An Sindile) , Ballinchalla Civil Parish, Barony of Kilmaine, Co. Mayo
- Shoodaun (Siúdán) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Short Island, Cill Imleach Civil Parish, Barony of Iveragh, Co. Kerry
- Shrub Island (Oileán na dTom) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Shrule (An tSruthail) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Shrulegrove (Sruthair) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Silverhill (Cnocán an Airgid) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Silverstream (Sruthán an Airgid) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Sixpenny Island (Oileán na Sé Pingne) , Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Skeaghaderreen (Sceach an Doirín) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Skeagharegan (Sceach Uí Riagáin) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Skeaghbeg (An Sceach Bheag) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Skeam East, Aghadown Civil Parish, Barony of West Carbery (East Division), Co. Cork
- Skeam West, Aghadown Civil Parish, Barony of West Carbery (East Division), Co. Cork
- Skecoor (Sceach Chuar) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Skehanagh (An Sceachánach) , Kilthomas Civil Parish, Barony of Kiltartan, Co. Galway
- Skehanagh (An Sceachánach) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Skehanagh (An Sceachánach) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Skehanagh (An Sceachánach) , Fahy Civil Parish, Barony of Longford, Co. Galway
- Skehanagh (An Sceachánach) , Tynagh Civil Parish, Barony of Longford, Co. Galway
- Skehanagh North (An Sceachánach Thuaidh) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Skehanagh South (An Sceachánach Theas) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Skellig Rock Great (Sceilg Mhichíl) , Cill Imleach Civil Parish, Barony of Iveragh, Co. Kerry
- Skellig Rock Little (An Sceilg Bheag) , Cill Imleach Civil Parish, Barony of Iveragh, Co. Kerry
- Skenageehy (Sceach na Gaoithe) , Kiltormer Civil Parish, Barony of Longford, Co. Galway
- Slatefield (Gort na Leacan) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Slieveaneena (Sliabh an Aonaigh) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Slieveaun (An Sliabhán) , Stradbally Civil Parish, Barony of Dunkellin, Co. Galway
- Slieve Burke (Sliabh Burcaigh) (aka Slieveburke) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Slievedotia (An Sliabh Dóite) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Slievefin (An Sliabh Fionn) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Slieveroe (An Sliabh Rua) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Slieveroe (An Sliabh Rua) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Slihaun Beg (An Sleachán Beag) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Slihaun More (An Sleachán Mór) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Slishwood Islands (aka Slishwood Island) , Killerry Civil Parish, Barony of Tirerrill, Co. Sligo
- Sloe Island, Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Sminver, Kilbarron Civil Parish, Barony of Tirhugh, Co. Donegal
- Smith's Island (Olieán an Ghamhna) , Cong Civil Parish, Barony of Ross, Co. Galway
- Snahadaun (Snáthadán) (aka Needle Island) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Snauvbo (Snámh Bó) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Somerset (Doire) , Clontuskert Civil Parish, Barony of Longford, Co. Galway
- Sonnagh (Sonnach) , Ahascragh Civil Parish, Barony of Clonmacnowen, Co. Galway
- Sonnagh New (Sonnach Nua) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Sonnagh Old (Sonnach) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Sovereign Islands, Ringcurran Civil Parish, Barony of Kinsale, Co. Cork
- Spiddal Middle (An Spidéal Láir) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Spiddal West (An Spidéal Thiar) (aka Spiddle West) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Springfield (Cluain Roilíoch) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Spring Garden (Garraí na Móna) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Srah (An tSraith) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Srah (An tSraith) , Kilgerrill Civil Parish, Barony of Clonmacnowen, Co. Galway
- Srah (An tSraith) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Srah (An tSraith) , Kiltartan Civil Parish, Barony of Kiltartan, Co. Galway
- Srahatloe (Sraith an tSlua) , Aghagower Civil Parish, Barony of Murrisk, Co. Mayo
- Srahaun (An Srathán) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Srahaunananta (Srathán na Neanta) , Kilteskill Civil Parish, Barony of Leitrim, Co. Galway
- Srahdoo (An tSrath Dhubh) , Kilmeen Civil Parish, Barony of Leitrim, Co. Galway
- Sraheendoo (An Sraithín Dubh) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Sralea, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Sranahaw (Srath na hÁithe) , Ross Civil Parish, Barony of Ross, Co. Galway
- Sroove (Sruibh) , Kilcolgan Civil Parish, Barony of Dunkellin, Co. Galway
- Srue (Srúbh) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Stag Island, Boyle Civil Parish, Barony of Boyle, Co. Roscommon
- Stags of Bofin (Beanna Inis Bó Finne) , Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Stare Island (Oileán na nDruideog) , Ballinrobe Civil Parish, Barony of Kilmaine, Co. Mayo
- Stick Isle, Tullyfern Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Stick Isles, Kilmacrenan Civil Parish, Barony of Kilmacrenan, Co. Donegal
- St. Laurencesfields (Páirceanna San Labhrás or Páirceanna Naomh Labhrás) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- St Macdara's Island (Oileán Macdara or Cruach na Cara) (aka St Macdaras Island) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Stony Island (An tOileán Clochach) , Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Stowlin (Stabhlann) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Stradbally East (An tSráidbhaile Thoir) , Stradbally Civil Parish, Barony of Dunkellin, Co. Galway
- Stradbally North (An tSráidbhaile Thuaidh) , Stradbally Civil Parish, Barony of Dunkellin, Co. Galway
- Stradbally South (An tSráidbhaile Theas) , Stradbally Civil Parish, Barony of Dunkellin, Co. Galway
- Stradbally West (An Sráidbhaile Thiar) , Stradbally Civil Parish, Barony of Dunkellin, Co. Galway
- Strandhill (Cnoc na Trá) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Strawbeach Island (Oileán Muiríleach) (aka Illaunamureelagh) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Straw Island (Oileán na Tuí) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Stream (An Sruthán) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Streamsford (Baile an tSrutháin) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Streamsford (Baile an tSrutháin) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Streamstown (Baile an tSrutháin) , Duniry Civil Parish, Barony of Leitrim, Co. Galway
- Streamstown (Bárr a' tSrutha) (aka Barratrough) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Streamstown (Baile an tSrutháin) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Stripe (An Straidhp) , Rahoon Civil Parish, Barony of Moycullen, Co. Galway
- Sturrakeen (Sturraicín) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Suckfield, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Swallow Island, Ardcarn Civil Parish, Barony of Boyle, Co. Roscommon
- Swan Island (Oileán an Iolra) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Sycamore Hill (Gort an Daingin) , Clonfert Civil Parish, Barony of Longford, Co. Galway
- Sylaun (Saighleán) , Kilbennan Civil Parish, Barony of Dunmore, Co. Galway
- Sylaun (Saighleán) , Killower Civil Parish, Barony of Clare, Co. Galway
- Sylaun (An Saíghleán) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Sylaun (Saighleán) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Taash Island, Burrishoole Civil Parish, Barony of Burrishoole, Co. Mayo
- Tallavbaun Island, Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Tallowroe (An Talamh Rua) , Killeeneen Civil Parish, Barony of Dunkellin, Co. Galway
- Tarramud (Tearmuid) , Stradbally Civil Parish, Barony of Dunkellin, Co. Galway
- Tarrea (An Tarae or An t-Aimhreidh) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Tawin East (Tamhain Thoir) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Tawin West (Tamhain Thiar) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Tawnaghbaun (Tamhnach Bán) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Tawnaghbeg (Tamhnach Beag) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Tawnagh East (An Tamhnach Thoir) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Tawnagh East (An Tamhnach Thoir) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Tawnaghmore (Tamhnach mór) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Tawnaghmore (An Tamhnach Mhór) , Cummer Civil Parish, Barony of Clare, Co. Galway
- Tawnagh West (An Tamhnach Thiar) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Tawnaleen (Tamhnaigh an Lín) , Ross Civil Parish, Barony of Ross, Co. Galway
- Taylorstown (Baile an Táilliúraigh) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Tearaght (An Tiaracht) , Dún Chaoin Civil Parish, Barony of Corkaguiny, Co. Kerry
- Teeranea (Tír an Fhia) , Ross Civil Parish, Barony of Ross, Co. Galway
- Teeranea (Tír an Fhia) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Teernakill North (Tír na Cille Thuaidh) , Ross Civil Parish, Barony of Ross, Co. Galway
- Temple (An Teampall or Teampall Ghearóid) , Clonkeen Civil Parish, Barony of Tiaquin, Co. Galway
- Templemartin (Teampall Mártain) , Killora Civil Parish, Barony of Dunkellin, Co. Galway
- Templemoyle (An Teampall Maol) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Templepark (Páirc an Teampaill) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Termon (An Tearmann) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Terryland (Tír Oileán) , St Nicholas Civil Parish, Barony of Galway, Co. Galway
- Thash (Tais or Carraig an tSáis) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- The Bull Island, Kilnamanagh Civil Parish, Co. Cork
- The Calf Island, Kilnamanagh Civil Parish, Barony of Bear, Co. Cork
- The Cow Island, Kilnamanagh Civil Parish, Barony of Bear, Co. Cork
- Thomastown (Baile Thomáis) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Tiernakill South (Tír na Cille Theas) , Barony of Ross, Co. Galway
- Tievebaun (Taobh Bán) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Tievebreen (Taobh Bruighne) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Tievegarriff (Taobh Garbh) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Tievegarriff (An Taobh Garbh) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Tievemore (Taobh Mór) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Timsallagh (Tom Shalach) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Tinageeragh (Tigh na gCaorach) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Tinode (Tigh an Fhóid) , KIlbride Civil Parish, Barony of Lower Talbotstown, Co. Wicklow
- Tiraloughan (Tír an Locháin) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Tiranascragh (Tír Chinn Eascrach) , Tiranascragh Civil Parish, Barony of Longford, Co. Galway
- Tirboy (An Tír Bhuí) , Tuam Civil Parish, Barony of Clare, Co. Galway
- Tirneevin (Tír Nimhin) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Tirrooaun (Tír Ruáin) , Clontuskert Civil Parish, Barony of Longford, Co. Galway
- Tisaxon (Tigh Sacsan) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Toberacreggaun (Tobar an Chreagáin) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Toberbiroge (Tobar Bioróige) , Cong Civil Parish, Barony of Ross, Co. Galway
- Toberbracken (Tobar Beacáin) , Killeely Civil Parish, Barony of Dunkellin, Co. Galway
- Toberconnelly (Tobar Con Eilí) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Tobercrossaun (Tobar an Chrosáin) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Tobergrellan (Tobar Grealláin) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Toberiheen, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Tobermina (Tobar Maighne) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Tobernadarry (Tobar na Daraí) , Moorgagagh Civil Parish, Barony of Kilmaine, Co. Mayo
- Tobernavean (Tobar na bhFiann) , Athenry Civil Parish, Barony of Clare, Co. Galway
- Toberroe (An Tobar Rua) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Toberroe (An Tobar Rua) , Kilconla Civil Parish, Barony of Dunmore, Co. Galway
- Togher (An Tóchar) , Boystown Civil Parish, Barony of Lower Talbotstown, Co. Wicklow
- Tomany Beg (Tomaine Beag) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Tomany More (Tomaine Mór) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Tomanynambraher (Tomaine na mBráthar) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Tomnahulla (Tom na hUla) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Tonabrocky (Tóin na Brocaí) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Tonacooleen (Tóin an Chúilín) , Donaghpatrick Civil Parish, Barony of Clare, Co. Galway
- Tonacrick (Tóin a Chnoic) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Tonacurragh (Tóin an Churraigh) , Oranmore Civil Parish, Barony of Galway, Co. Galway
- Tonadooravaun (Tóin a' Dúrabháin) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Tonagarraun (Tóin an Gharráin) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Tonaglanna (Tóin an Ghleanna) , Ballinrobe Civil Parish, Barony of Ross, Co. Mayo
- Tonaleeaun (Tamhnaigh Liatháin) , Cong Civil Parish, Barony of Kilmaine, Co. Mayo
- Tonalig, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Tonamace (Tóin an Mhása) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Tonamace (Tóin an Mhása) , Kilmoylan Civil Parish, Barony of Clare, Co. Galway
- Tonatleva (Tóin a tSléibhe) , Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Tonbaun (An Tóin Bhán) , Kilconickny Civil Parish, Barony of Dunkellin, Co. Galway
- Tonlegee (Tóin le Gaoith) , Ross Civil Parish, Barony of Ross, Co. Galway
- Tonlemone (Tóin le Móin) , Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Tonranny (Tóin Raithní) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Tonranny Mountain (Sliabh Thóin Raithní) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Tonroe (Am Tóin Rua) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Tonroe (An Tóin Rua) , Kilkilvery Civil Parish, Barony of Clare, Co. Galway
- Tonroe (An Tóin Rua) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Tonroe (An Tóin Rua) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Tonvey, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Tonwee (An Tóin Bhuí) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Tonweeroe (An Tóin Bhuí Rua) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Tooloobaunbeg (Tuath Lúbáin) , Lickerrig Civil Parish, Barony of Loughrea, Co. Galway
- Tooloobauntemple (Tuath Lúbáin an Teampaill) , Kilconickny Civil Parish, Barony of Athenry, Co. Galway
- Toombeola (Tuaim Beola) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Toomoge Island, Tullyfern Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Toorard (An Tuar Árd) , Shrule Civil Parish, Barony of Kilmaine, Co. Mayo
- Tooraskeheen (Tuar a' Sgeithín) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Toorclogher (Tuar Clochair) , Killogilleen Civil Parish, Barony of Dunkellin, Co. Galway
- Tooree (Tuar Aodha) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Tooreen (Tuairín) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Tooreen (An Tuairín) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Tooreen (Tuairín) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Tooreen (An Tuairín) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Tooreen (An Tuairín) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Tooreena (Tuairín Áith) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Tooreenacoona (Tuairín a' Chuana) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Tooreenard (An Tuairín Ard) , Killallaghtan Civil Parish, Barony of Clonmacnowen, Co. Galway
- Tooreen East (An Tuairín Thoir) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Tooreen North (An Tuairín Thuaidh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Tooreen South (An Tuairín Theas) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Tooreen West (An Tuairín Thiar) , Killeenavarra Civil Parish, Barony of Dunkellin, Co. Galway
- Tooreeny (Na Tuairíní) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Toorkeel (An Tuar Caol) , Monivea Civil Parish, Barony of Tiaquin, Co. Galway
- Toorleitra (Tuar Liataire) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Toorloggagh (An Tuar Logach) , Ross Civil Parish, Barony of Ross, Co. Galway
- Toormacleane (Tuar Mhic Giolla Éanáin) , Grange Civil Parish, Barony of Kilconnell, Co. Galway
- Toormacnevin (Tuar Mhic Cnáimhín) , Killeenadeema Civil Parish, Barony of Loughrea, Co. Galway
- Toormore (An Tuar Mór) , Kilmalinoge Civil Parish, Barony of Longford, Co. Galway
- Toormore (An Tuar Mór) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Toorsmuttaun (Tuar Smután) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Toralyden Island, Glencolumbkille Civil Parish, Barony of Banagh, Co. Donegal
- Torglass Island, Tulacha Beigile Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Tormaun (Tarmann) , Killimordaly Civil Parish, Barony of Kilconnell, Co. Galway
- Tormore Island (An Tor Mór) , Glencolumbkille Civil Parish, Barony of Banagh, Co. Donegal
- Tornacolpagh Island, Tulacha Beigile Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Townaloughra (Tamhan na Luachra) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Townparks (Páirceanna An Bhaile) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Townparks (Páirceanna an Bhaile) , Donanaghta Civil Parish, Barony of Longford, Co. Galway
- Townparks (Páirceanna an Bhaile) , Kilcloony Civil Parish, Barony of Clonmacnowen, Co. Galway
- Townparks, Creagh Civil Parish, Barony of Moycarn, Co. Galway
- Townparks (Páirceanna an Bhaile) , St Nicholas Civil Parish, Barony of Galway, Co. Galway
- Townparks 1st Division (Páirceanna an Bhaile (an chéad roinnt)) , Tuam Civil Parish, Barony of Dunmore, Co. Galway
- Townparks 1st Division (Páirceanna an Bhaile (an chéad roinnt)) , Tuam Civil Parish, Barony of Dunmore, Co. Galway
- Townparks 2nd Division (Páirceanna an Bhaile (an dara roinnt)) , Tuam Civil Parish, Barony of Clare, Co. Galway
- Townparks 3rd Division (Páirceanna an Bhaile (an triú roinnt)) (aka Townparks Number 3) , Tuam Civil Parish, Barony of Clare, Co. Galway
- Townparks 4th Division (Páirceanna an Bhaile (an ceathrú roinnt)) (aka Townparks Number 4) , Tuam Civil Parish, Barony of Clare, Co. Galway
- Townparks 5th Division (Páirceanna an Bhaile (an cúigiúi roinnt)) (aka Townparks Number 5) , Tuam Civil Parish, Barony of Dunmore, Co. Galway
- Townparks 5th Division (Páirceanna an Bhaile (an cúigiúi roinnt)) (aka Townparks Number 5) , Tuam Civil Parish, Barony of Dunmore, Co. Galway
- Traskernagh (An Treascarnach) , Kilmeen Civil Parish, Barony of Leitrim, Co. Galway
- Trawnish Island, Cloonclare Civil Parish, Barony of Drumahaire, Co. Leitrim
- Trean (Trian) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Trean (Tréan) , Ballinrobe Civil Parish, Barony of Ross, Co. Mayo
- Treananearla (Trian an Iarla) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Treanbaun (An Trian Bán) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Treanbaun (An Trian Bán) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Treanbaun (An Trian Bán) , Killower Civil Parish, Barony of Clare, Co. Galway
- Treankyle (Trian Coill) , Kilconierin Civil Parish, Barony of Dunkellin, Co. Galway
- Treanlaur (An Trian Láir) , Ballynacourty Civil Parish, Barony of Dunkellin, Co. Galway
- Tree Island (Oileán an Chrainn) , Islandeady Civil Parish, Barony of Carra, Co. Mayo
- Trellick (Treileac or Trí Leac) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Trinity Island (Oileán na Tríonóide) , Kilbryan Civil Parish, Barony of Boyle, Co. Roscommon
- Tristaun (Trostán) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Truska (Trusca) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Truskaunnagappul (Troscaigh na gCapall or Troscadh na gCapall) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Trusky East (Troscaigh Thoir or Na Troscaigh Thoir) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Trusky West (Troscaigh Thiar or Na Troscaigh Thiar) , Rahoon Civil Parish, Barony of Galway, Co. Galway
- Trust (Trost) , Kilconnell Civil Parish, Barony of Kilconnell, Co. Galway
- Tuam Island, Killinagh Civil Parish, Barony of Tullyhaw, Co. Cavan
- Tulla (An Tulaigh) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Tullaghaboy (Na Tulacha Buí) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Tullagh Lower (An Tulach Íochtair) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Tullaghlummanbeg (Tulach Lomáin Beag) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Tullaghlumman More (Tulach Lomáin Mhór) , Moyrus Civil Parish, Barony of Ballynahinch, Co. Galway
- Tullaghmore (Tulach Mór) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Tullagh Upper (An Tulach Uachtair) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Tullagh Upper (An Tulach Uachtair) , Loughrea Civil Parish, Barony of Loughrea, Co. Galway
- Tullawicky (Tulaigh Mhuicí) , Ballymacward Civil Parish, Barony of Kilconnell, Co. Galway
- Tullinlicky (Tulach Na Lice) , Fahy Civil Parish, Barony of Longford, Co. Galway
- Tullira (Tul Aighre) , Ardrahan Civil Parish, Barony of Dunkellin, Co. Galway
- Tullokyne (Tulaigh Mhic Aodháin) (aka Tullykyne) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Tully, Moore Civil Parish, Barony of Moycarn, Co. Roscommon
- Tully (An Tulaigh) , Meelick Civil Parish, Barony of Longford, Co. Galway
- Tullyarvan (Tulaigh Armhaoile) , Fahan Lower Civil Parish, Barony of Inishowen West, Co. Donegal
- Tullybeg (Tulaigh Beag) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Tullybrattan (Tulaigh Bhreatan) , Beagh Civil Parish, Barony of Kiltartan, Co. Galway
- Tullyconor (Tulaigh Uí Chonchobhair) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Tullyillan (Tulaigh Oileáin) , Templecrone Civil Parish, Barony of Boylagh, Co. Donegal
- Tullymore (Tulaigh Mór) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Tullyvealnaslee (Tulaigh Bhéal na Slí) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Tullyvoheen (Tulaigh Bhoithín) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Tullyvrick (Tulaigh an Bhroic) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Tulrush (Tul Rois) , Killower Civil Parish, Barony of Clare, Co. Galway
- Tulrush, Creagh Civil Parish, Barony of Moycarn, Co. Roscommon
- Tumnasrah (Tom na Sraithe) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Tumneenaun (Tom Naíonán) , Cong Civil Parish, Barony of Ross, Co. Galway
- Turavaghla (Tor an Bhuachalla) , Kilmacduagh Civil Parish, Barony of Kiltartan, Co. Galway
- Turbot Island (Oileán Toirbeirt) , Omey Civil Parish, Barony of Ballynahinch, Co. Galway
- Turksland (Baile na dTurcach) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Turlough (Túrlach) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Turloughalanger (Turlach an Langair) , Athenry Civil Parish, Barony of Athenry, Co. Galway
- Turloughbeg (Túrlach) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Turloughcor (Turlach Corr) , Killeany Civil Parish, Barony of Clare, Co. Galway
- Turloughgarve (An Turlach Garbh) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Turloughkeeloge (Turlach Caológ) , Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Turloughmore Common (An Turlach Mór) , Lackagh Civil Parish, Barony of Clare, Co. Galway
- Turloughnacloghdoo Commons (Turlach na gCloch Dubh) , Kilthomas Civil Parish, Barony of Loughrea, Co. Galway
- Turloughnaroyey (Turlach na Rua) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Turloughrevagh (An Turlach Riabhach) , Kilmoylan Civil Parish, Barony of Clare, Co. Galway
- Turoe (An Túr Rua) , Kiltullagh Civil Parish, Barony of Athenry, Co. Galway
- Turramore (Dura Mór) , Kilbeacanty Civil Parish, Barony of Kiltartan, Co. Galway
- Two Headed Island, Kilcrohane Civil Parish, Barony of Dunkerron South, Co. Kerry
- Tynagh (Tíne or Tigh an Fheadha) , Tynagh Civil Parish, Barony of Leitrim, Co. Galway
- Tyrone (Tigh Reoin) , Drumacoo Civil Parish, Barony of Dunkellin, Co. Galway
- Uggool (Ogúil) , Moycullen Civil Parish, Barony of Moycullen, Co. Galway
- Uggool (An tOgúl) , Kilgeever Civil Parish, Barony of Murrisk, Co. Mayo
- Ulicks Mountain (Sliabh Uillic) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Ulrith (Olraid) , Killursa Civil Parish, Barony of Clare, Co. Galway
- Umfin Island, Tulacha Beigile Civil Parish, Barony of Kilmacrenan, Co. Donegal
- Ummeracly East (Iomaire Claí Thiar) , Addergoole Civil Parish, Barony of Dunmore, Co. Galway
- Ummeracly West (Iomaire Claí Thiar) , Addergoole Civil Parish, Barony of Dunmore, Co. Galway
- Ungwee (Ungbhuí) , Ballynakill Civil Parish, Barony of Ballynahinch, Co. Galway
- Urkaunbeg (Orcán Beag) (aka Urkaun Beg) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Urkaunmore (Orcán Mór) (aka Urkaun More) , Kilcummin Civil Parish, Barony of Moycullen, Co. Galway
- Urracly (Urchlaí) , Kilconla Civil Parish, Barony of Dunmore, Co. Galway
- Urraghry (Urchraí) , Clontuskert Civil Parish, Barony of Clonmacnowen, Co. Galway
- Vicarschoral Land (Fearann na mBiocáirí Córacha) , Tuam Civil Parish, Barony of Clare, Co. Galway
- Vicarschoral Land (Fearann na mBiocáirí Córacha) , Tuam Civil Parish, Barony of Clare, Co. Galway
- Wallers Island, Kilcornan Civil Parish, Barony of Kenry, Co. Limerick
- Wallscourt (Cúirt na bhFáltach) , Kilreekil Civil Parish, Barony of Leitrim, Co. Galway
- Walsh's Island (Oileán an Bhreathnaigh) (aka Walshes Island) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Walsh's Island (Oileán an Bhreathnaigh) , Killeany Civil Parish, Barony of Clare, Co. Galway
- Walshtown (Baile na mBreatnach) , Killoran Civil Parish, Barony of Longford, Co. Galway
- Waterdale (Eochaill) , Baile Chláir Civil Parish, Barony of Clare, Co. Galway
- Weir Island, Kinvarradoorus Civil Parish, Barony of Kiltartan, Co. Galway
- Wellpark (Páirc an Tobair) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Wellpark (Páirc an Tobair) , St Nicholas Civil Parish, Barony of Galway, Co. Galway
- Westport Demesne (Diméin Chathair na Mart) , Kilmeena Civil Parish, Barony of Burrishoole, Co. Mayo
- Westquarter (An Cheathrú Iarthach) , Inishbofin Civil Parish, Barony of Ballynahinch, Co. Galway
- Wherune Island (An Foiriún) , Ballindoon Civil Parish, Barony of Ballynahinch, Co. Galway
- Whin Island, Kiltoom Civil Parish, Barony of Athlone, Co. Roscommon
- Whitegates (Na Geataí Bána) , Killimorbologue Civil Parish, Barony of Longford, Co. Galway
- Willyrogue Island (Oilean Mhaolróige) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Woodberry (Woodberry) , Killallaghtan Civil Parish, Barony of Kilconnell, Co. Galway
- Woodfield (Cluain Coilleach) , Kilquain Civil Parish, Barony of Longford, Co. Galway
- Woodfield or Tullynisk (Tulchán na Sceach) , Eglish Civil Parish, Barony of Eglish, Co. Offaly
- Woodford (An Ghráig) , Ballynakill Civil Parish, Barony of Leitrim, Co. Galway
- Wood Island (Oileán na Coille) , Ross Civil Parish, Barony of Ross, Co. Galway
- Woodlawn (Móta) , Killaan Civil Parish, Barony of Kilconnell, Co. Galway
- Woodpark (Baile Na Coille) , Annaghdown Civil Parish, Barony of Clare, Co. Galway
- Woodquay (Coill an Chalaidh) , Belclare Civil Parish, Barony of Clare, Co. Galway
- Wormhole (Poll na bPéist) , Cill Aithnín Civil Parish, Barony of Moycullen, Co. Galway
- Yellow Island, Meelick Civil Parish, Barony of Longford, Co. Galway
- Yellow Island Large, Kiltoom Civil Parish, Barony of Athlone, Co. Roscommon
- Yellow Island Little, Kiltoom Civil Parish, Barony of Athlone, Co. Roscommon
- Yew Islands, Lickmolassy Civil Parish, Barony of Longford, Co. Galway
- Young's Island (Oileán na nÓg) , Dún Chaoin Civil Parish, Barony of Corkaguiny, Co. Kerry