Achternamen
| Achternaam | Aantal |
|---|---|
| Kooger | 1 |
| Koogje | 1 |
| Kooi | 3 |
| Kooij | 1 |
| Kooij, van | 1 |
| Kooij, van der | 4 |
| Kooijman | 7 |
| Kooijmans | 19 |
| Kooiker | 1 |
| Kooiman | 2 |
| Kooke | 4 |
| Kooken | 9 |
| Kool | 40 |
| Koolen | 159 |
| Koolhout | 2 |
| Koolman | 2 |
| Kooloos | 1 |
| Kools | 31 |
| Koolwijk | 2 |
| Koolwijk, van | 5 |
| Koolwijk, van de | 1 |
| Koomen | 5 |
| Koonen | 29 |
| Kooning, de | 1 |
| Koonings | 5 |