| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Clemente | kle-MEN-te (Italian, Spanish) | Italian, Spanish, Portuguese | ||
| Clementina | kle-men-TEE-nah (Italian, Spanish), klə-mən-TEE-nə (Portuguese) | Italian, Spanish, Portuguese | ||
| Cleo | KLEE-o | English | ||
| Cletis | KLEE-tis | English (Rare) | ||
| Cleto | KLE-to (Italian, Spanish) | Italian, Spanish, Portuguese | ||
| Cletus | KLEE-təs | English | ||
| Cleve | KLEEV | English | ||
| Cleveland | KLEEV-lənd | English | ||
| Cliff | KLIF | English | ||
| Clifford | KLIF-ərd | English | ||
| Clifton | KLIF-tən | English | ||
| Clint | KLINT | English | ||
| Clinton | KLIN-tən | English | ||
| Clive | KLIEV | English | ||
| CloÉ | klo-E (French) | Portuguese, French |