Achternamen
| Achternaam | Aantal |
|---|---|
| Kok, de | 38 |
| Kok,de | 1 |
| Kokalj | 1 |
| Köke | 3 |
| Kokelkoren | 4 |
| Koken | 14 |
| Kokenberg | 2 |
| Koker | 2 |
| Kokke | 1 |
| Kokkelkoren | 9 |
| Kokkelkorn | 3 |
| Kokkelmans | 7 |
| Kokken | 3 |
| Kokol | 1 |
| Koks | 25 |
| Kokshoorn | 6 |
| Kokx | 7 |
| Kol | 2 |
| Kol, van | 4 |
| Kolacki | 1 |
| Kolaris | 1 |
| Kolaschnik | 1 |
| Kolb | 5 |
| Kolbe | 2 |
| Kolberg | 2 |