| Cúc | Woman | Vietnamese Names |
| Cuevas | Unisex | Spanish Names |
| Cui | Unisex | Incan Names |
| Cullen | Man | Scottish Names |
| Culture | Unisex | English Names |
| Culver | Man | English Names |
| Cunigunde | Woman | German Names |
| Cunnawabum | Unisex | Native American - Cree Names |
| Cunningham | Man | Irish Names |
| Cuno | Man | German - Old High German Names |
| Cunobeline | Man | Latin Names |
| Cuntur | Unisex | Incan Names |
| Curran | Man | Irish Names |
| Currer | Unisex | English Names |
| Currier | Unisex | French Names |
| Curry | Man | Irish Names |
| Curt | Man | Latin Names |
| Curtis | Man | Latin Names |
| Cusi | Unisex | Incan Names |
| Cusick | Man | Native American - Onondaga Names |