Baby Names of Ireland

Irish Boy Names A to C

54 Irish boy names starting with A, B or C, with what each one means and how to say it.

Updated September 2026

Browse by letter range: A to C, D to F, G to N, O to Z. See all Irish boy names, or Irish girl names.

The Irish boy names on this page that the most babies were given in 2025, by the Central Statistics Office’s ranking.

  1. No. 9 boysCillian271 babies
  2. No. 33 boysCian142 babies
  3. No. 90 boysCathal64 babies
  4. No. 97 boysConall59 babies
  5. No. 132 boysCaolán41 babies
  6. No. 135 boysCúan40 babies
  7. No. 141 boysCormac38 babies
  8. No. 149 boysCiarán35 babies
  9. No. 232 boysConan20 babies
  10. No. 252 boysBrian18 babies

Irish boy names starting with A

Aedan

pronounced AID-an

A diminutive form of the name Aed meaning “fire” and would imply “born of fire.”

More about Aedan

Aengus

pronounced ENG-iss

From aon “excellent” and gus “strength, vigor.” Aengus was the god of love and of youth.

More about Aengus

Ailbe

pronounced ALL-bay

From an old Irish word meaning “white,” the 6th century St. Ailbe was associated with the monastery at Emly in County Tipperary.

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Ailill

pronounced ALL-yill

From the Irish ailleacht “beauty.” Ailill was the young husband of Queen Maebh, chosen by her because he was “a man without meanness, fear or jealousy, a match for my own greatness.”

More about Ailill

Alroy

pronounced AL-roy

Alroy is linked with the Irish rua (older ruadh), “red, red-haired,” through Irish surnames.

More about Alroy

Ardan

pronounced ARE-dawn

From ardanach meaning “high aspiration.” Ardan was one of the sons of Usna who helped Deirdre escape to Scotland so that she would not be forced to marry King Conchobhar MacNessa.

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Art

pronounced ART

In Ireland a separate name from Arthur it comes from an ancient word for “a bear,” used in the sense of “outstanding warrior” or “champion.”

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Irish boy names starting with B

Bartley

pronounced BART-lee

The name of one of the twelve apostles, it is the Irish form of the Hebrew name Bartholomew “Son of Talmai.”

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Bradan

pronounced BRAY-dawn

Bradan comes from the Irish word bradán, “salmon.” The salmon has a special place in Irish myth.

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Breandan

pronounced BREN-dawn

There are at least seventeen saints who bear the name but St. Breandan the Navigator is probably the best known.

More about Breandan

Irish boy names starting with C

Cabhan

pronounced KAV-an

Cabhán is an Irish word meaning “hollow,” and An Cabhán is the Irish name of Cavan, the Ulster county and its county town.

More about Cabhan

Canice

pronounced CAN-iss

From coinneach “attractive person,” “pleasant person.” A sixth-century Irish missionary St. Canice founded churches in Ireland, Scotland and Wales.

More about Canice

Caolan

pronounced KEE-lawn

Caolán comes from caol “slender, narrow” with the diminutive -án, so “slender one.” Rev.

More about Caolan

Carney

pronounced KAR-nee

Carney comes mainly from the Irish surname Ó Cearnaigh, “descendant of Cearnach,” a personal name meaning “victorious.”

More about Carney

Carrick

pronounced KAR-ik

Carrick comes from the Irish carraig, “rock.” It is best known as a place-name element, as in Carrickfergus (Carraig Fhearghais, “Fergus’s rock”) and Carrick-on-Suir (Carraig na Siúire).

More about Carrick

Cathal

pronounced KA-hal

From cath “battle” and all “mighty” and signifies “a great warrior.”

More about Cathal

Cearul

pronounced KAR-ul

Cearul is a simplified spelling of Cearbhall, from the Old Irish Cerball, probably from cerb “sharp, cutting.” It was once a common Irish name and was borne by several medieval kings.

More about Cearul

Ciaran

pronounced KEER-awn

From ciar “dark” and the diminutive -in it means “little dark one.” Popular for over 1500 years, at least 26 saints have borne the name.

More about Ciaran

Clearie

pronounced KLEER-ee

Clearie is a spelling of Cleary, from the Irish surname Ó Cléirigh, “descendant of Cléireach.” Cléireach means “clerk” or “cleric,” a churchman and, by extension, a scholar.

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Clooney

pronounced KLOO-nee

Clooney is an Irish surname used as a first name. It is an anglicized form of Ó Cluanaigh, “descendant of Cluanach,” an old surname of South Leinster.

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Coilin

pronounced KOH-lin

Coilín is a variant of the old Irish name Coileán, which means “whelp.” In modern Irish coileán means a pup or cub, and also a youth.

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Colm

pronounced KUL-um

A Gaelic form of the Latin columba meaning “dove.” St. Columba of Iona or Colmcille colm + cille or “dove of the church” was a prince of the O’Neill clan, a great poet and scholar.

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Colman

pronounced KOL-man

From the same root as Colm, it means “little dove” and has developed into a separate name from Colm and there are said to be 350 saints of the name.

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Conall

pronounced KUN-al

Means friendship or could be from con “a hound,” as applied to a swift-footed warrior, and all “great, mighty.”

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Conan

pronounced KO-nan

An old name from con “a hound” or “swift-footed warrior” and in the form conan means “little warrior.” Conan Maol (“Bald Conan”) was one of the warrior-band, the Fianna.

More about Conan

Conchobhar

pronounced CON-r

Means “lover of hounds.” Conchobhar MacNessa was the king of Ulster and, according to legend, was born on the same day as Christ.

More about Conchobhar

Cormac

pronounced KOR-mak

From old Irish corbmac “son of the charioteer.” Cormac Mac Airt was probably the most famous of the ancient kings of Ireland.

More about Cormac

Cuan

pronounced KOO-an

Cúan comes from cú “hound, wolf” with the diminutive -án, so “little hound” or “little wolf.” Written Cuan, without a fada, it is also the everyday Irish word for a harbor or haven.

More about Cuan

Irish names by letter

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