Lú

From Old Irish Lugmad or Lugbad, named after Lugh.


Laois

From Middle Irish Loígis, name of a tribe living in the area in the Middle Ages (see Loígis on Wikipedia).


Baile Átha Cliath

head

Baile Átha Cliath m (genitive Baile Átha Cliath)

Baile Átha Cliath (genitive)
BAC (abbreviation)
BÁC (abbreviation)
Baile Átha Cliath
Bhaile Átha Cliath
mBaile Átha Cliath

/ˌbʲlʲɑː ˈclʲiə/


Mí

An Mhí (canonical feminine)
na Mí (genitive)
nominative (indefinite)
Mí (indefinite singular)
vocative (indefinite)
a Mhí (indefinite singular)
genitive (indefinite)
dative (indefinite)
nominative (definite)
an Mhí (definite singular)
genitive (definite)
na Mí (definite singular)
dative (definite)
leis an Mí (definite singular)
don Mhí (definite singular)
Mí
Mhí

From Old Irish Mide, from mide (“middle”).


Luimneach

Luimnigh (genitive)
nominative (indefinite)
Luimneach (indefinite singular)
vocative (indefinite)
a Luimnigh (indefinite singular)
genitive (indefinite)
Luimnigh (indefinite singular)
dative (indefinite)
nominative (definite)
an Luimneach (definite singular)
genitive (definite)
an Luimnigh (definite singular)
dative (definite)
leis an Luimneach (definite singular)
don Luimneach (definite singular)

/ˈl̪ˠɪmʲənʲəx/

From lom na n-each (“grassless (field) of the horses”).


Port Láirge

Phort Láirge (genitive)
Port Láirge
Phort Láirge
bPort Láirge


Gaillimh

Gaillimhe (genitive)
nominative (indefinite)
Gaillimh (indefinite singular)
vocative (indefinite)
a Ghaillimh (indefinite singular)
genitive (indefinite)
Gaillimhe (indefinite singular)
dative (indefinite)
nominative (definite)
an Ghaillimh (definite singular)
genitive (definite)
na Gaillimhe (definite singular)
dative (definite)
leis an nGaillimh (definite singular)
don Ghaillimh (definite singular)
Gaillimh
Ghaillimh
nGaillimh

Of uncertain meaning. The City of Galway is named from the old name for the River Corrib that runs from Lake Corrib to Galway Bay, Abhainn na Gaillimhe in Irish. It is said that gaillimh may mean “rocky” or “stony” in English.


Corcaigh

Corcaí (genitive)
Corcaigh
Chorcaigh
gCorcaigh

Old dative case of corcach (“bog, marsh, swamp”).


Loch Garman

/ˌl̪ˠɔx ˈɡaɾˠəmˠən̪ˠ/

/ˌl̪ˠɔx ˈɡaɾˠəmˠənˠ/

Literally, “Garman’s lake” after Garman mac Bomma Licce.


Liatroim

[ˈl̠ʲiət̪ˠɾˠəmʲ]


Maigh Eo

→ English: Mayo

The county is named after the village with the same name which lies within it. The name, meaning "field of yew trees", breaks down as maigh (“field”) + eo (“yew tree”).

Irish name of a county in Ireland, named Mayo in English


Ros Comáin

[ɾˠɔsˠ ˈkʊmˠɑːnʲ]

From ros (“wood”) + Comáin, genitive of Comán (“Saint Coman”).

Roscommon (a county and town in Ireland)


Sligeach

Shligigh (genitive)
nominative (indefinite)
Sligeach (indefinite singular)
vocative (indefinite)
a Shligigh (indefinite singular)
genitive (indefinite)
Sligigh (indefinite singular)
dative (indefinite)
nominative (definite)
an Sligeach (definite singular)
genitive (definite)
an tSligigh (definite singular)
dative (definite)
leis an Sligeach (definite singular)
don Sligeach (definite singular)
Sligeach
Shligeach
tSligeach

From sligeach (“shells; place abounding in shells”), from slige (“shell”).


Cill Chainnigh

Cill Chainnigh f (genitive Chill Chainnigh)

Chill Chainnigh (genitive)
Cill Chainnigh
Chill Chainnigh
gCill Chainnigh

/ˌciːlʲ ˈxɑnʲɪɟ/

/ˌciːl̠ʲ ˈxan̠ʲə/

/ˌcɪl̠ʲ ˈxan̠ʲiː/


Doire

Northern Ireland
Northern Ireland#English

Londonderry (a county of Northern Ireland)


Ciarraí

Chiarraí (genitive)
Ciarraí
Chiarraí
gCiarraí


Tír Chonaill

Thír Chonaill (genitive)
Tír Chonaill
Thír Chonaill
dTír Chonaill

Synonym of Dún na nGall: Donegal (a county of Ireland)


Dún na nGall

Dhún na nGall (genitive)
Dún na nGall
Dhún na nGall
nDún na nGall

/ˌd̪ˠuːn̪ˠəˈŋal̪ˠ/


Aontroim

Aontroma (genitive)
Aontroim
nAontroim
hAontroim

From Old Irish óen (“single, lone, one”) + troim (“back, spine, ridge”).


Ard Mhacha

Ard Mhacha (genitive)
Ard Mhacha
nArd Mhacha
hArd Mhacha

/ɑːɾˠd̪ˠ ˈwaxə/

From the dative singular of Middle Irish Ard Macha, from Old Irish Ard Machae, literally meaning "height of Macha".


Ceatharlach

Cheatharlach (genitive)
Ceatharlach
Cheatharlach
gCeatharlach

/ˈcahəɾˠl̪ˠəx/

/ˈcahəɾˠl̪ˠəx/

/ˈcɑːɾˠl̪ˠəx/


Cabhán

An Cabhán (canonical masculine)
an Chabháin (genitive)
nominative (indefinite)
Cabhán (indefinite singular)
vocative (indefinite)
a Chabháin (indefinite singular)
genitive (indefinite)
Cabháin (indefinite singular)
dative (indefinite)
nominative (definite)
an Cabhán (definite singular)
genitive (definite)
an Chabháin (definite singular)
dative (definite)
leis an gCabhán (definite singular)
don Chabhán (definite singular)
Cabhán
Chabhán
gCabhán

From cabhán (“hollow, cavity”), from Old Irish cobfán (“slope, hollow”).


Clár

an Clár (canonical masculine)
an Chláir (genitive)
Clár
Chlár
gClár

Possibly named for Thomas de Clare, Lord of Thomond, Hiberno-Norman soldier (see Clare), or possibly related to the name Clarecastle, from Old Irish clár (“bridge, wooden board”).

Brill Publishers
Clarecastle
Thomas de Clare, Lord of Thomond
ga:Contae an Chláir


Dún

an Dún (canonical masculine)
an Dúin (genitive)
Dún
Dhún
nDún


Fear Manach

Fhear Manach (genitive)
Fear Manach
Fhear Manach
bhFear Manach

Fermanagh (a county of Northern Ireland)


Cill Dara

Chill Dara (genitive)
Cill Dara
Chill Dara
gCill Dara


Tír Eoghain

Thír Eoghain (genitive)
Tír Eoghain
Thír Eoghain
dTír Eoghain

English: Tyrone

/tʲiːɾʲ ˈoːnʲ/

/tʲiːɾʲ ˈɔːnʲ/


Tiobraid Árann

Tiobraid Árann f (genitive Thiobraid Árann)

/ˌtʲʊbˠɾˠədʲ ˈɑːɾˠən̪ˠ/

tiobraid (“well”) + Árann, genitive of Ára, the River Ara.


Longfort

an Longfort (canonical masculine)
an Longfoirt (genitive)


Muineachán

Muineacháin (genitive)
nominative (indefinite)
Muineachán (indefinite singular)
vocative (indefinite)
a Mhuineacháin (indefinite singular)
genitive (indefinite)
Muineacháin (indefinite singular)
dative (indefinite)
nominative (definite)
an Muineachán (definite singular)
genitive (definite)
an Mhuineacháin (definite singular)
dative (definite)
leis an Muineachán (definite singular)
don Mhuineachán (definite singular)
Muineachán
Mhuineachán

/mˠɪnʲəˈxɑːn̪ˠ/

/ˈmˠɪnʲəxɑːnˠ/

/ˈmˠɪnʲəxɑːn̪ˠ/


Iarmhí

an Iarmhí (canonical feminine)
na hIarmhí (genitive)
Iarmhí
nIarmhí
hIarmhí

/əˌnʲiəɾˠˈvʲiː/

/əˌn̠ʲiəɾˠˈvʲiː/


Uíbh Fhailí

Uíbh Fhailí (genitive)
Uíbh Fhailí
nUíbh Fhailí
hUíbh Fhailí

Originally the dative plural of Uí Fhailí, in reference to the medieval Kingdom of Uí Failghe.

Kingdom of Uí Failghe
ga:Contae Uíbh Fhailí


Cill Mhantáin

Cill Mhantáin f (genitive Cill Mhantáin)

Cill Mhantáin (genitive)
Cill Mhantáin
Chill Mhantáin
gCill Mhantáin

/ˌciːlʲ vˠɑn̪ˠˈt̪ˠɑːnʲ/

/ˌciːl̠ʲ ˈwan̪ˠt̪ˠɑːnʲ/

/ˌcɪl̠ʲ ˈwan̪ˠt̪ˠɑːnʲ/

/ˌcɪl̠ʲ ˈwan̪ˠt̪ˠænʲ/

Literally, “church of Mantán”, a personal name deriving from Old Irish mant (“gums, jaw”), from Proto-Brythonic *mant (whence Welsh mant (“mouth, jaw”)), cognate with Latin mentum (“chin”) and Gothic 𐌼𐌿𐌽𐌸𐍃 (munþs, “mouth”).