Achternamen
| Achternaam | Aantal |
|---|---|
| Köppencastrop | 1 |
| Koppendraijer | 1 |
| Koppendrayer | 1 |
| Koppenens | 1 |
| Koppenhagen | 1 |
| Koppenrade | 1 |
| Koppens | 7 |
| Koppers | 28 |
| Koppert | 3 |
| Koppes | 12 |
| Koppmann | 1 |
| Kops | 7 |
| Körbel | 2 |
| Korbeld | 1 |
| Körber | 2 |
| Korbmacher | 3 |
| Korczynski | 1 |
| Kordalsky | 1 |
| Kordelaar, van | 5 |
| Kordik | 2 |
| Kordt | 1 |
| Koreman | 7 |
| Koremans | 4 |
| Koren | 1 |
| Korenromp | 2 |