| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Clementine | klə-mawn-TEEN | French | ||
| Cleo | KLEE-o | English | ||
| Cleon | - | Ancient Greek (Latinized) | ||
| Cleopatra | klee-ə-PAT-rə (English) | Ancient Greek (Latinized) | ||
| Cletis | KLEE-tis | English (Rare) | ||
| 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 | ||
| Clitus | - | Ancient Greek (Latinized) | ||
| Clive | KLIEV | English |