| Name | Meaning | Origins | Gender | Popularity (last 10y) | |
|---|---|---|---|---|---|
| Clancie | Descendant/son of Flannchadh ('red' or 'red‑haired warrior') | Irish | Unisex | — | |
| Clansi | Probably from Irish 'Clancy', ultimately from flann meaning 'red' - 'red-haired' or 'descendant of Flann' | Irish | Unisex | — | |
| Clansy | Descendant of Flannchaidh; related to 'flann' meaning red or ruddy (red-haired/red warrior) | Irish | Unisex | — | |
| Cliodhna | Beautiful; associated with a mythological Irish sea-goddess | Irish | Girl | — | |
| Cloda | From the River Clodagh; broadly 'river' or 'muddy water' | Irish | Girl | — | |
| Clowey | Uncertain. Likely surname/place-name derived; if connected to Irish 'cloch' (stone) or English 'clough' (ravine) it could suggest 'stone' or 'ravine'. If influenced by Chloe, a sense of 'young green shoot' or 'blooming' may apply. | English, Irish | Girl | — | |
| Clunainach | From the little meadow | Irish, Scottish Gaelic | Boy | — | |
| Clunee | Meadow; 'from the meadow' | Irish | Unisex | — | |
| Clunees | From the meadow / pasture | Irish | Unisex | — | |
| Cluney | Meadow, pasture - 'from the meadow' | Irish, Scottish Gaelic | Unisex | — | |
| Clyne | Meadow, pasture; 'from the meadow' | Irish, Scottish | Unisex | — | |
| Coalan | Slender, narrow; 'slender-bodied' or 'fine, thin' | Irish | Boy | — | |
| Coan | Likely 'descendant of Cuanán' (from Irish Cuan meaning roughly 'harbor' or 'beloved/little one'), or a locational name meaning 'dweller by a hollow/cove' in Cornish/English contexts. | Cornish, English, Irish, Scottish | Boy | — | |
| Cobyrne | From a surname meaning 'descendant of Bran' (Bran = 'raven'), broadly 'of the raven'; alternate associations with 'coal/black' if connected to Coburn | Irish | Unisex | — | |
| Coghlan | Descendant of Coghlán - a Gaelic personal name of uncertain/obscure meaning | Irish | Boy | — | |
| Coilin | Diminutive of Cailean/Colin - 'little/young one' (often glossed as 'whelp' or 'young pup') | Irish | Boy | — | |
| Coillcumhann | Possibly from Gaelic coill 'wood, forest' + element Cumhann (uncertain); roughly 'wood-dweller' or 'of the forest' (meaning not firmly established). | Irish, Scottish Gaelic | Boy | — | |
| Coinleain | Likely 'little dog' or 'puppy' - diminutive related to Irish coileán/coin meaning 'dog' or 'whelp'. | Irish | Boy | — | |
| Coleenah | Girl; little girl | Irish | Girl | — | |
| Colene | Girl; young woman | Irish | Girl | — | |
| Colina | Spanish: 'hill'. Also used as a feminine form of Colin (linked to Gaelic Cailean 'young pup' or as a diminutive of Nicholas). | Irish, Italian, Spanish | Girl | — | |
| Collean | Girl; young woman | Irish | Girl | — | |
| Colleena | Girl; "little girl" | Irish | Girl | — | |
| Colleenah | Girl, little girl | Irish | Girl | — | |
| Colleene | Girl; young woman | Irish | Girl | — | |
| Collena | Girl; young girl | Irish | Girl | — | |
| Collene | Girl, young woman | Irish | Girl | — | |
| Colli | Variant/diminutive of Colin - "young pup" or "little one"; as an Italian surname, from colle/colli meaning "hills". | English, Irish, Italian, Scottish | Boy | — | |
| Colmcilla | Dove of the church | Irish | Boy | — | |
| Colmcille | Dove of the church | Irish | Boy | — | |
| Colmicille | Dove of the church | Irish | Boy | — | |
| Coloman | Little dove | Irish, Latin | Boy | — | |
| Colomban | Little dove (diminutive of 'dove') | Irish | Boy | — | |
| Colombanus | Little dove / dove-like | Irish | Boy | — | |
| Colsin | Likely 'son of Cole' (Cole = 'coal/coal‑black'); alternatively related to Colin/Collins meaning 'young one' or 'descendant of Coll'. | English, Irish | Boy | — | |
| Columb | Dove | Gaelic, Irish | Boy | — | |
| Columbanus | Little dove; dove-like | Irish | Boy | — | |
| Columbkille | Dove of the church | Irish | Boy | — | |
| Columcille | Dove of the church | Irish | Boy | — | |
| Coly | Diminutive of Colin ('dove') or from Old English 'col' meaning 'coal' - 'little coal' or 'dweller near coal/charcoal'. | English, Gaelic, Irish | Unisex | — | |
| Comdhan | Uncertain - not attested in major sources; possibly derived from Gaelic elements but meaning is unknown or unclear. | Gaelic, Irish | Boy | — | |
| Comgall | Shared valor | Irish | Boy | — | |
| Comhghan | Possibly 'born together' or 'twin' - likely from Gaelic elements meaning 'together' + a birth-related suffix; exact etymology uncertain | Irish | Boy | — | |
| Con | Hound, wolf | Irish | Boy | — | |
| Conaire | Hound-chief; keeper of hounds | Irish | Boy | — | |
| Conall Cernach | Conall: from Gaelic elements meaning 'hound/strong wolf' or 'valiant'; Cernach: 'victorious' - together 'Conall the Victorious'. | Irish | Boy | — | |
| Conall of the Fiery Hair | From Old Irish 'con' (hound) - commonly interpreted as 'strong as a hound', 'high-spirited' or 'strong-willed'. | Gaelic, Irish | Boy | — | |
| Conall the Victorious | From Old Irish meaning 'strong wolf' or 'mighty hound'; with the epithet 'the Victorious' indicating triumph | Gaelic, Irish | Boy | — | |
| Conant | Originally a surname; often associated with the Gaelic personal name Conan meaning "little hound" or "little wolf" | English, Irish | Boy | — | |
| Conar | Lover of hounds (from Gaelic element 'con' = hound) | Gaelic, Irish | Boy | — |
Aggregated births across Ireland, United Kingdom, United States, Australia for every Irish-origin name in our dataset.
