| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Claude | KLOD (French), KLAWD (English) | French, English | ||
| Claudette | klo-DET | French | ||
| Claudia | KLAW-dee-ə (English), KLOW-dee-ah (German, Dutch), KLOW-dyah (Italian, Spanish, Romanian) | English, German, Dutch, Italian, Spanish, Romanian, Biblical, Ancient Roman | ||
| Claudie | klo-DEE | French | ||
| Claudine | klo-DEEN | French | ||
| Claudius | KLAW-dee-əs (English) | Ancient Roman | ||
| Clay | KLAY | English | ||
| Clayton | KLAY-tən | English | ||
| Cleisthenes | KLIES-thə-neez (English) | Ancient Greek (Latinized) | ||
| Cleitus | - | Ancient Greek (Latinized) | ||
| Clem | KLEM | English | ||
| Clematis | klə-MAT-is | English (Rare) | ||
| Clemence | KLEM-ənts | English | ||
| Clemency | KLEM-ənt-see | English (Rare) | ||
| Clement | KLE-mənt | English |