| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Cathleen | kath-LEEN | Irish, English | ||
| Cathryn | KATH-rin | English | ||
| Cathy | KATH-ee | English | ||
| Cato (1) | - | Ancient Roman | ||
| Cavan | - | English | ||
| Cayden | KAY-dən | English (Modern) | ||
| Cayley | KAY-lee | English (Rare) | ||
| Ceara | - | English (Rare) | ||
| Cearra | - | English (Rare) | ||
| Cece | SEE-see | English | ||
| Cecelia | sə-SEE-lee-ə, sə-SEEL-yə | English | ||
| Cecil | SEE-səl, SES-əl | English | ||
| Cecilia | sə-SEE-lee-ə (English), sə-SEEL-yə (English), che-CHEE-lyah (Italian), the-THEE-lyah (Spanish), se-SEE-lyah (Latin American Spanish), se-SEEL-yah (Danish, Norwegian), SE-see-lee-ah (Finnish) | English, Italian, Spanish, Swedish, Danish, Norwegian, Finnish, Dutch, German | ||
| Cecilija | - | Slovene, Croatian | ||
| Cecily | SES-i-lee | English |