| Carl | Man | German Names |
| Carloman | Man | German Names |
| Carola | Woman | German Names |
| Carolin | Woman | German Names |
| Carolina | Woman | German Names |
| Carsten | Man | German Names |
| Caspar | Man | German Names |
| Casper | Man | German Names |
| Childeric | Man | German Names |
| Clarimonde | Woman | German Names |
| Claus | Man | German Names |
| Cline | Unisex | German Names |
| Clotilda | Woman | German Names |
| Clove | Unisex | German Names |
| Coen | Man | German Names |
| Cord | Man | German Names |
| Crescentia | Woman | German Names |
| Cunigunde | Woman | German Names |