Achternamen
| Achternaam | Aantal |
|---|---|
| Ciesniewski | 1 |
| Cieters | 1 |
| Ciggaar | 1 |
| Cijffers | 1 |
| Cikot | 1 |
| Cilessen | 3 |
| Cilissen | 8 |
| Cillekens | 15 |
| Cillen | 8 |
| Cillesen | 2 |
| Cillessen | 1 |
| Cillis | 1 |
| Cimmermans | 3 |
| Cina, van | 1 |
| Cinkus | 1 |
| Ciolkowiak | 1 |
| Cioppa | 1 |
| Cipido | 1 |
| Ciszko | 1 |
| Citeur | 1 |
| Civilo | 1 |
| Claas | 2 |
| Claaßen | 3 |
| Claasens | 1 |
| Claassen | 120 |