| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| CITLALI | - | Native American, Nahuatl | ||
| CITRA | CHEET-rah | Indonesian | ||
| CLÁUDIA | - | Portuguese | ||
| CLÁUDIO | - | Portuguese | ||
| CLÉMENCE | kle-MAWNS | French | ||
| CLÉMENT | kle-MAWN | French | ||
| CLÍDNA | - | Irish Mythology | ||
| CLÍMACO | - | Spanish | ||
| CLÍODHNA | KLEE-u-na | Irish, Irish Mythology | ||
| CLÍONA | - | Irish | ||
| CLAES | KLAHS | Swedish | ||
| CLAIR | KLER | French, English | ||
| Claire | [klɛə] | |||
| CLAIRE | KLER | French, English | ||
| CLANCY | KLANT-see | Irish, English (Rare) |