| Christiansen | - | Danish Name | Christoff | - | English Name |
| Christoffer | - | Danish Name | Christofferson | - | Danish Name |
| Christophe | - | French Name | Christopher | - | Biblical Name |
| Christos | - | Greek Name | Chua | - | American Name |
| Chuchip | - | American Name | Chudamani | - | Indian Name |
| Chudamani | - | Hindu Name | Chukwudumaga | - | Nigerian Name |
| Chukwunonso | - | African Name | Chulbul | - | Hindu Name |
| Chuma | - | Egyptian Name | CHUN | - | Chinese Name |
| Chun | - | Biblical Name | Chung | - | Chinese Name |
| Chunmay | - | Hindu Name | Chunta | - | American Name |
| Chushan-rishathaim | - | Biblical Name | Chval | - | Czechoslovakian Name |
| Chyavan | - | Hindu Name | Cian | - | Irish Name |
| Ciaran | - | Irish Name | Ciarda | - | Gaelic Name |
| Ciardubhan | - | Gaelic Name | Cid | - | Spanish Name |
| Ciel | - | French Name | Cindy | - | Australian Name |
| Cinnard | - | Gaelic Name | Cinneidudh | - | Gaelic Name |
| Cinnfhail | - | Gaelic Name | Cipactli | - | Nahuatl Name |
| Ciqala | - | American Name | Ciro | - | Persian Name |
| Cis | - | Biblical Name | Cisco | - | Spanish Name |
| Ckaha | - | African Name | Clach | - | Scottish Name |
| Clamedeus | - | Arthurian Name | Clancy | - | Irish Name |
| Clarence | - | Latin Name | Clarion | - | Arthurian Name |
| clark | - | English Name | Clarke | - | English Name |
| Claudas | - | Arthurian Name |
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