Achternamen
| Achternaam | Aantal |
|---|---|
| Custers | 270 |
| Custes | 1 |
| Cusumano | 1 |
| Cutsem, van | 2 |
| Cuveele | 2 |
| Cuvelier | 3 |
| Cuyck, van | 2 |
| Cuyckens | 1 |
| Cuyk, van | 1 |
| Cuykens | 1 |
| Cuylits | 2 |
| Cuyper, de | 3 |
| Cuypers | 254 |
| Cuysbroeck, van | 1 |
| Cuyt | 1 |
| Cuyten | 2 |
| Cuyvers | 6 |
| Cuyx | 3 |
| Cybulski | 2 |
| Cypers | 1 |
| Czachur | 1 |
| Czaijkowski | 1 |
| Czajkowska | 1 |
| Czarny | 1 |