| Cristina | Woman | Spanish Names |
| Cristobal | Man | Spanish Names |
| Cristofer | Man | Spanish Names |
| Cristy | Unisex | English Names |
| Crosby | Unisex | English Names |
| Cross | Unisex | English Names |
| Crue | Man | French Names |
| Cruella | Woman | English Names |
| Cruise | Unisex | English Names |
| Cruz | Man | Spanish Names |
| Cruzita | Woman | Spanish Names |
| Cruzito | Man | Spanish Names |
| Crwys | Unisex | Welsh Names |
| Crystal | Woman | Latin Names |
| Crystella | Woman | American - Created Names |
| Csaba | Man | Hungarian Names |
| Csilla | Woman | Hungarian Names |
| Csongor | Man | Hungarian Names |
| Cualli | Unisex | Aztec Names |
| Cuba | Man | Spanish Names |