| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| CuauhtÉMoc | - | Native American, Nahuatl | ||
| Cuidightheach | - | Ancient Irish | ||
| Cunigund | - | Ancient Germanic | ||
| Cunobelinus | kyoo-no-bə-LIEN-əs (English) | Ancient Celtic | ||
| Cupid | KYOO-pəd (English) | Roman Mythology | ||
| Curro | - | Spanish | ||
| Custodia | - | Spanish | ||
| Custodio | - | Spanish | ||
| Cuthberht | - | Anglo-Saxon | ||
| Cuthbert | KUTH-burt | English (Rare) | ||
| Cveta | - | Serbian | ||
| Cvijeta | TSVEE-e-tah | Croatian, Serbian | ||
| Cvita | TSVEE-tah | Croatian | ||
| Cyan | SIE-an | English (Rare) | ||
| Cybele | SIB-ə-lee (English) | Near Eastern Mythology (Hellenized) |