| Chuks | | - | Western African, Igbo | |
| Chukwudi | | - | Western African, Igbo | |
| Chukwuemeka | | - | Western African, Igbo | |
| Chukwuma | | - | Western African, Igbo | |
| Chun | | - | Chinese | |
| Cinta | | - | Indonesian | |
| Cipriano | | chee-pree-AH-no (Italian) | Italian, Spanish, Portuguese | |
| CirÍAco | | - | Portuguese, Spanish | |
| Citra | | CHEET-rah | Indonesian | |
| ClÁUdia | | - | Portuguese | |
| ClÁUdio | | - | Portuguese | |
| Clara | | KLAH-rah (Italian, German, Spanish), KLER-ə (English), KLAR-ə (English) | Italian, German, Spanish, Portuguese, Catalan, Romanian, English, Swedish, Danish, Late Roman | |
| Clarissa | | klə-RIS-ə (English) | English, Italian, Portuguese, Spanish | |
| Clemente | | kle-MEN-te (Italian, Spanish) | Italian, Spanish, Portuguese | |
| Clementina | | kle-men-TEE-nah (Italian, Spanish), klə-mən-TEE-nə (Portuguese) | Italian, Spanish, Portuguese | |