| Corona | Woman | Spanish Names |
| Corrigan | Unisex | Irish Names |
| Corsa | Woman | Italian Names |
| Cort | Man | English Names |
| Cortéz | Man | Spanish Names |
| Corvina | Woman | American Names |
| Corvus | Man | Latin Names |
| Corwin | Unisex | Irish Names |
| Cory | Unisex | Irish Names |
| Corydon | Man | Greek Names |
| Coryn | Unisex | American Names |
| Cosette | Woman | French Names |
| Cosima | Woman | Italian Names |
| Cosimo | Man | Italian Names |
| Coskun | Man | Turkish Names |
| Cosma | Woman | Italian Names |
| Cosmas | Man | Greek Names |
| Cosmin | Man | Romansh Names |
| Cosmo | Man | English Names |
| Costa | Unisex | Spanish Names |