| Navn | Total | Navn | Total |
|---|---|---|---|
| Klink | 1 | Larsdatter | 59 |
| Klinzendorff | 3 | Larsdotter | 9 |
| Klug | 1 | Larsen | 106 |
| Knakkergaard | 1 | Larsson | 6 |
| Knudsdatter | 19 | Lassen | 28 |
| Knudsen | 30 | Laugesen | 1 |
| Knøest | 1 | Lauridsen | 2 |
| Kobberø | 9 | Lauritsdatter | 1 |
| Kock | 2 | Lauritsen | 2 |
| Koefoed | 4 | Lauritzen | 2 |
| Kofoed | 7 | Laursdatter | 8 |
| Kohlby | 1 | Laursen | 36 |
| Kok | 2 | Lausen | 1 |
| Kolding | 1 | Leffland | 3 |
| Kolotkim | 1 | Lehn | 1 |
| Kondrup | 3 | Leitau | 1 |
| Korremann | 3 | Lescher | 5 |
| Krag | 1 | Lidell | 2 |
| Kragh | 3 | Liebst | 86 |
| Krebs | 1 | Liffland | 12 |
| Kreiter | 1 | Liisberg | 13 |
| Kriegbaum | 13 | Lilja | 1 |
| Kriegsmann | 3 | Lillen | 2 |
| Kristensen | 13 | Lilliefeld | 1 |
| Kristiansen | 2 | Lind | 2 |
| Krog | 5 | Lindberg | 1 |
| Krogh | 9 | Lindblad | 6 |
| Kronback | 3 | Linde , de | 1 |
| Krone | 4 | Lindegaard | 44 |
| Krop | 1 | Lindgaard | 4 |
| Kruse | 1 | Lindhardt | 1 |
| Krøjer | 1 | Lindorff | 17 |
| Kullen | 2 | Linnet | 6 |
| Kyhn | 7 | Linze | 1 |
| Kyhnel | 9 | Littau | 7 |
| Købke | 2 | Lollich | 1 |
| Køge | 1 | Lorentzdatter | 4 |
| Køhnke | 17 | Lorentzen | 2 |
| Kønig | 6 | Lorenzen | 6 |
| Laborne | 5 | Low | 12 |
| Lacour | 5 | Ludvigsdatter | 3 |
| Ladefoged | 1 | Lumbye | 13 |
| Ladekarl | 4 | Lund | 56 |
| Lai | 3 | Lundberg | 2 |
| Lamotte | 1 | Lundblad | 3 |
| Lamotte , de | 1 | Lundorff | 8 |
| Lange | 11 | Lyhe | 1 |
| Langebek | 1 | Lytken | 2 |
| Langemarck | 3 | Læschert | 7 |
| Laquier | 1 | Læsøe | 1 |