Name	Meaning	Gender	Origin	Similar
Cerdwin	the mother Goddess	Female	Celtic	-
Chad	Defence.	Male	Celtic	-
Cinnia	Beauty.	Female	Celtic	-
Cinnie	Beauty.	Female	Celtic	-
Clancy	offspring of red-headed soldier	Male	Celtic	Clancey, Clan
Clust	Mythical son of Clustfeinad.	Male	Celtic	-
Clustfeinad	Mythical father of Clust.	Male	Celtic	-
Coalan	slender	Male	Celtic	Kayey
Cocidius	Mythical hunter god.	Male	Celtic	-
Coinneach	Handsome.	Male	Celtic	-
Con	Wise.	Male	Celtic	-
Conal	High; mighty.	Male	Celtic	-
Conall	Strong in battle High; mighty.	Male	Celtic	-
Conall Cernach	Mythical Ulster chieftain.	Male	Celtic	-
Conan	High, wise. Introduced into Britain after the Norman Conquest. Famous bearers: Sir Arthur Conan Doyle, creator of the detective Sherlock Holmes; a number of counts and dukes of Brittany bore the name Conan.	Male	Celtic	-
Conant	Wise.	Male	Celtic	-
Conchobar	Mythical hero.	Male	Celtic	-

Condan	Dark haired wise man.	Male	Celtic	-
Condon	the dark-haired wise man	Male	Celtic	-
Conn	Mythical son of Lir: wise; High; mighty.	Male	Celtic	-
Connal	'High; mighty.'.	Male	Celtic	-
Connell	Strong in battle.	Male	Celtic	-
Conner	desire, wise aid, wolf-lover	Male	Celtic	Conners, Connor, O'Conner, O'Connor, Conor, Conan
Connla	Mythical son of Conn.	Male	Celtic	-
Conroy	Persistent.	Male	Celtic	-
Conway	Hound of the plain.	Male	Celtic	-
Corann	Mythical druid.	Male	Celtic	-
Cordelia	Of the sea.	Female	Celtic	-
Corey	raven, from the hollow	Male	Celtic	Cory, Corry, Corrie, Correy
Cormac	Charioteer.	Male	Celtic	-
Coventina	Water goddess.	Female	Celtic	-
Cradawg	Mythical son of Bran.	Male	Celtic	-
Craig	from near the crag	Male	Celtic	Greg

Cuchulain	Mythical Hound of Ulster.	Male	Celtic	-
Cuinn	Wise.	Male	Celtic	-
Culain	Mythical smith.	Male	Celtic	-
Culann	Mythical smith.	Male	Celtic	-
Cullen	young animal, handsome	Male	Celtic	Culley, Cullin
Custennin	Mythical giant.	Male	Celtic	-
Cuyler	chapel	Female	Celtic	-
Cyric		Male	Celtic	-
Dallas	Dwells by the waterfall.	Male	Celtic	-
Daman	Demon.	Male	Celtic	-
Dana	from Denmark, mother of the Gods in myths	Female	Celtic	-
Darcy	Dark.	Male	Celtic	-
Dearg	Son of Daghda.	Male	Celtic	-
Dechtire	Mythical nursemaid.	Female	Celtic	-
Deheune	Divine one.	Female	Celtic	-
Deirdre	Sorrowful.	Female	Celtic	-

Delia	Diminutive of Bedelia: A variant of Bridget, who was the mythic Celtic goddess of fire and poetry.	Female	Celtic	-
Deoch	Mythical princess of Munster.	Female	Celtic	-
Dermot	free of envy	Male	Celtic	Kermit
Derry	great lover, an ancient hero	Male	Celtic	-
Desmond	From south Munster.	Male	Celtic	-
Deva	Divine one.	Female	Celtic	-
Devin	Poet.	Male	Celtic	-
Devnet	poet	Female	Celtic	-
Devona	Divine one.	Female	Celtic	-
Devyn	Poet.	Male	Celtic	-
Dewain	Song.	Male	Celtic	-
Dierdre	young girl, one who rages, broken-hearted	Female	Celtic	Deirdre, Deirdra, Dierdra, Deedee, Deedra, Dee
Dillion	Faithful.	Male	Celtic	-
Dinsmore	From the hill fort.	Male	Celtic	-
Diva	Divine one.	Female	Celtic	-