| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Citlali | - | Native American, Nahuatl | ||
| Citra | CHEET-rah | Indonesian | ||
| ClÍMaco | - | Spanish | ||
| Clancy | KLANT-see | Irish, English (Rare) | ||
| Clara | KLAH-rah (Italian, German, Spanish), KLER-ə (English), KLAR-ə (English) | Italian, German, Spanish, Portuguese, Catalan, Romanian, English, Swedish, Danish, Late Roman | ||
| Claretta | - | Italian | ||
| Clarette | - | English (Rare) | ||
| Clarisa | klah-REE-sah | Spanish | ||
| Clarissa | klə-RIS-ə (English) | English, Italian, Portuguese, Spanish | ||
| Claritia | - | Late Roman | ||
| Clarity | KLER-i-tee, KLAR-i-tee | English (Rare) | ||
| Clarus | - | Late Roman | ||
| Claudia | KLAW-dee-ə (English), KLOW-dee-ah (German, Dutch), KLOW-dyah (Italian, Spanish, Romanian) | English, German, Dutch, Italian, Spanish, Romanian, Biblical, Ancient Roman | ||
| Claudio | KLOW-dyo | Italian, Spanish | ||
| Claudiu | - | Romanian |