| Cypress | Unisex | English Names |
| Cyprian | Man | Latin Names |
| Cypriana | Woman | Latin Names |
| Cyprien | Man | French Names |
| Cyprus | Unisex | English Names |
| Cyra | Woman | Persian Names |
| Cyrah | Woman | African Names |
| Cyrene | Woman | Greek Names |
| Cyrielle | Woman | French Names |
| Cyril | Man | Greek Names |
| Cyrila | Woman | Greek Names |
| Cyrus | Man | Persian Names |
| Cytheria | Woman | Greek Names |
| Czar | Man | Russian Names |
| Czarina | Woman | Russian Names |