Baby Names of Ireland

Irish Boy Names Starting with C

29 Irish boy names beginning with C, with what each one means and how to say it.

Updated September 2026

There are 29 Irish boy names starting with C here. The ones readers look up most are Cian, Cillian and Ciaran.

The C names for boys 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. 286 boysColm15 babies

Irish boy names starting with C

Cian

pronounced KEY-in

Cian means “ancient, enduring.” Two syllables, stress on the first.

More about Cian

Cillian

pronounced KIL-e-an

Cillian means “associated with the church.” Three syllables, stress on the first.

More about Cillian

Clooney

pronounced KLOO-nee

Clooney comes from the Irish surname Ó Cluanaigh, “descendant of Cluanach,” a name meaning “beguiling.” Two syllables, stress on the first.

More about Clooney

Conan

pronounced KO-nan

Conan means “little warrior.” Two syllables, stress on the first.

More about Conan

Cormac

pronounced KOR-mak

Cormac means “son of the charioteer.” Two syllables, stress on the first.

More about Cormac

Cuan

pronounced KOO-an

Cuan means “little hound.” Two syllables, stress on the first.

More about Cuan

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