| Name | Total | Name | Total |
|---|
| Kroos | 1 | Laanstra | 1 |
| Krop | 1 | Laar, van | 3 |
| Krosse | 1 | Laar, van de | 1 |
| Krudde | 3 | Laarakkers | 1 |
| Kruger | 1 | Laarman | 1 |
| Krugten, van | 4 | Laarmans | 1 |
| Kruidenberg | 1 | Laat, de | 2 |
| Kruiff, de | 2 | Labbée, de | 1 |
| Kruijf, de | 4 | Ladenius | 2 |
| Kruijff, de | 1 | Laenen (Laanen) | 1 |
| Kruiper | 6 | Lakeman | 1 |
| Kruis | 32 | Lakemond | 8 |
| Kruit | 2 | Lam | 2 |
| Krul | 9 | Lambers | 1 |
| Kruse | 1 | Lambert | 2 |
| Kuentjes | 1 | Lambooij | 4 |
| Kühling | 2 | Lamerus | 4 |
| Kuhlman | 3 | Lamet | 2 |
| Kuhlmann | 10 | Lammers | 8 |
| Kühn | 2 | Lammerts | 2 |
| Kuijper | 1 | Lammertsma | 1 |
| Kuijtenbrouwer | 1 | Lampe | 23 |
| Kuiken | 3 | Lamphen | 1 |
| Kuilenberg | 4 | Land, van der | 1 |
| Kuin | 2 | Landman | 44 |
| Kuiper | 13 | Landskroon | 1 |
| Kuipers | 174 | Landstra | 2 |
| Kuitems | 1 | Lang, de | 2 |
| Kuneman | 1 | Lange, de | 301 |
| Kunnen | 3 | Langedijk | 41 |
| Kuper | 1 | Langemeijer | 4 |
| Kuperus | 4 | Langemeyer | 1 |
| Kuppen | 2 | Langen | 3 |
| Kuppens | 1 | Langenberg | 1 |
| Kussendrager | 81 | Langendijk | 3 |
| Kuyk | 1 | Langendoen | 2 |
| Kuyper | 1 | Langenhorst | 4 |
| Kuypers | 4 | Langenkamp | 1 |
| Kwak | 1 | Langhe, de | 1 |
| Kwakman | 3 | Langhorst | 1 |
| Kwaspen | 1 | Langhout | 46 |
| Kwisthout | 1 | Langius | 3 |
| Laadstra | 1 | Lankhorst | 2 |
| Laageveen | 1 | Lankveld | 2 |
| Laagland | 47 | Lans, van der | 1 |
| Laak, ter | 1 | Lanting | 2 |
| Laak, van | 1 | Lantinga | 1 |
| Laan | 2 | Lap | 6 |
| Laan, van der | 22 | Larbig | 1 |
| Laanen | 1 | Larooi | 1 |
