| N A M E | O R I G I N | M E A N I N G |
| Churchill | English | Lives at the church hill. |
| Churchyll | English | Lives at the church hill. |
| Chushan-rishathaim | Biblical | Blackness of iniquities. |
| Chuslum-moxmox | Native-American | Nez Perce name meaning yellow bull. |
| Chval | Czechoslovakian | Flattery. |
| Chwalibog | Polish | Praise God. |
| Cian | Celtic/Gaelic | Ancient |
| Cianan | Irish | Variant of Cian: Old; ancient; archaic. |
| Ciaran | Irish | Black-haired. |
| Ciardha | Irish | Variant of Ciaran: Black-haired. |
| Ciardubhan | Gaelic | Little black one. |
| Ciarrai | Irish | County. Variant of Ciaran: Black-haired. |
| Cibor | Hebrew | Strong. |
| Cicero | Greek | The Historian |
| Ciceron | Latin | chickpea |
| Cid | Spanish | Lord |
| Cidro | Spanish | Abbreviation of Isadoro 'strong gift.'. |
| Ciel | French | from heaven |
| Cillan | Irish | Variant of Ceallach: War; strife. |
| Cillian | Celtic/Gaelic | War |
| Cilombo | African | Camp by the road. |
| Cinese | African | Variant of Chinese: Nigerian name meaning 'God protects'. |
| Cingeswell | English | Lives at the king's spring. |
| Cingeswiella | English | Lives at the king's spring. |
| Cinnard | Gaelic | From the high hill. |
| Cinneide | Irish | Variant of Cinneidid: Helmeted; helmed head. |
| Cinneidid | Irish | Helmet head; helmed head. |
| Cinneididh | Gaelic | Helmeted. |
| Cinneidigh | Irish | Variant of Cinneidid: Helmeted; helmed head. |
| Cinnfhail | Gaelic | From the head of the cliff. |
