Achternamen
| Achternaam | Aantal |
|---|---|
| Koppmann | 1 |
| Kops | 7 |
| Körbel | 2 |
| Korbeld | 1 |
| Körber | 1 |
| Korbmacher | 3 |
| Korczynski | 1 |
| Kordalsky | 1 |
| Kordelaar, van | 5 |
| Kordik | 2 |
| Koreman | 6 |
| Koremans | 2 |
| Koren | 1 |
| Korenromp | 1 |
| Korf | 1 |
| Korfage | 2 |
| Körfer | 5 |
| Korff | 5 |
| Korfmacher | 1 |
| Korink | 1 |
| Koritnik | 2 |
| Körmeling | 1 |
| Korn | 2 |
| Kornel | 1 |
| Korneluk | 1 |