| KAHREL | Kruger |
| KAMPEN | Hovenga |
| KAMPEN | Jürjens |
| KAMPEN | Lengerhuis |
| KAMPEN | Ploeger |
| KAMPEN | Schmedes |
| KAMPEN | Sielmann |
| KANNING | Kruse |
| KARSJENS | Robert |
| KASPERS | Kruse |
| KASPOL | Ukena |
| KASPOL | Schlenkermann |
| KATENKAMP | Bross |
| KATER | Ehlers |
| KATJOUW | Bunk |
| KAUFMANN | Schröder |
| KEITER | Müller |
| KEIZER | Dent |
| KEIZER | Hansen |
| KEIZER | Kleimaker |
| KELLNER | Uchtmann |
| KEMPE | Conring |
| KERKHOF | Patin |
| KETTWICH | Ahlers |
| KETTWICH | Foget |
| KEUSDER | Pauls |
| KEUSDER | Spiegel |
| KIEVEL | van Lengen |
| KINTZIUS | Janssen |
| KIRCHHOFF | Bruns |
| KIRCHHOFF | Fischer |
| KIRKHOFS | Bakker |
| KLAASSEN | Alberts |
| KLAASSEN | Aukes |
| KLAASSEN | Dirks |
| KLAASSEN | Toelsted |
| KLADDE | Slik |
| KLAVERS | Spieker |
| KLEINHUISEN | Gastmann |
| KLEINMANS | Steen |
| KLEM | Bakker |
| KLEM | Lohmeier |
| KLEM | Starke |
| KLEM | Strüve |
| KLEY | Groeneveld |
| KLIEGE | Waten |
| KLINKENBORG | Buttjer |
| KLINKENBERG | Snelten |
| KLINKENBORG | Dykmann |
| KLINKENBORG | Nerjes |
| KLINKENBORG | Müller |
| KLINKENBORG | Uchtmann |
| KLINKENBORG | Sielmann |
| KLINKHAMER | Sluiter |
| KLINT | Beekmann |
| KLINT | Boekhoff |
| KLINT | Dado |
| KLINT | van der Dyk |
| KLINT | Eimers |
| KLINT | Graventein |
| KLINT | Heidelberg |
| KLINT | Knoop |
| KLINT | van Mekelenborg |
| KLINT | Ravenburg |
| KLINT | Schutz |
| KLINT | Termohlen |
| KLINT | Woortman |
| KLOCH | Dirks |
| KLOCK | Koobs |
| KLOCK | Willems |
| KLOK | Coobs |
| KLOK | Luiken |
| KLOSTERMANN | van Pütten |
| KLUG | Fischer |
| KLUGKIST | Dirks |
| KLUGKIST | Klumker |
| KLUMKER | Geerdes |
| KLUMKER | Müller |
| KLUMKER | Swik |
| KLUTE | Geitz |
| KLUTE | Kramer |
| KLUVERS | Molthaupt |
| KLÜVERS | de Wall |
| KNEIFMANN | Has |
| KNOBE | Pabst |
| KNOCK | Sollermann |
| KNOLL | Wenninga |
| KNOOP | Budde |
| KNOOP | Maas |
| KNOOP | Termohlen |
| KNOTNERUS | Brechtezende |
| KNOTNERUS | Minnig |
| KOCH | Barghoorn |
| KOCH | Borchers |
| KOCH | Bruns |
| KOCH | Frey |
| KOCK | Meyer |
| KOCK | de Beer |
| KOCK | Schulte |
| KOCK | van der Vaart |
| KOENEN | Voss |
| KOERS | Zwartzenborg |
| KOERTS | Dähn |
| KOK | Freesemann |
| KOK | Harders |
| KOK | Kamp |
| KOK | Ulfers |
| KOK | Stael |
| KOK (de) | van de Hüür |
| KOKEN | Helmers |
| KOLDER | Lüring |
| KÖLDER | van Norden |
| KÖLLERS | Veerman |
| KOLTHOFF | van der Heide |
| KOMAN | Schaap |
| KÖNIG | Dreesmann |
| KONING | Smid |
| KOOL | Klem |
| KOOP | Boelssen |
| KOOP | Hesse |
| KOOPMAN | Wienenga |
| KOOPMAN | Wientjes |
| KÖPER | Diekhuis |
| KOPPE | de Kok |
| KOPPE | Worps |
| KORING | Bangema |
| KORING | van Geuns |
| KORING | Klock |
| KORING | Romker |
| KORTE | Pruin |
| KÖSTER | Barthel |
| KÖSTER | Doyen |
| KÖSTERS | Kranenkamp |
| KOTEN (van) | Albers |
| KOTEN (van) | Apfeld |
| KOTEN (van) | Boekholt |
| KOTEN (van) | Eimers |
| KOTEN (van) | Faber |
| KOTEN (van) | Grünefeld |
| KOTEN (van) | Klint |
| KOTEN (van) | Nannen |
| KOTEN (van) | Noteboom |
| KOTEN (van) | Penning |
| KOTEN (van) | Semke |
| KOTEN (van) | Thien |
| KOTEN (van) | Wehmeier |
| KOTEN (van) | Trint |
| KRAFT | Busemann |
| KRAFT | Leling |
| KRAFTING | Reploeg |
| KRAFTING | Themmen |
| KRAMER | Backhaus |
| KRAMER | Berg |
| KRAMER | Boerma |
| KRAMER | Brauer |
| KRAMER | Dirksen |
| KRAMER | Goldhoorn-Smit |
| KRAMER | Horst |
| KRAMER | Leefhold |
| KRAMER | Müürmann |
| KRAMER | Renzichausen |
| KRAMER | Schulte |
| KRAMER | Stegmann |
| KRANENBERG | Roskam |
| KRANENBORG | de Grave |
| KRANENKAMP | Brands |
| KRANENKAMP | Deehaus |
| KRANENKAMP | Janssen |
| KRANENKAMP | Petri |
| KRANENKAMP | Schmidt |
| KRAY | Klock |
| KREMER | Kramer |
| KROESE | Rubyn |
| KROMMINGA | Boekhoff |
| KROMMINGA | Dreesmann |
| KROMMINGA | Olthof |
| KROMMINGA | Stiermann |
| KROMMINGA | Stuilker |
| KROMMINGA | Verlaat |
| KROMMINGA | Vriesemann |
| KROON | Willems |
| KROONS | Groeneveld |
| KROUSE | Spyker |
| KRUGER | Zylmann |
| KRÜGER | Husmann |
| KRULL | Müller |
| KRULL | Müller |
| KRULL | Russe |
| KRULL | Stiermann |
| KRUSE | Bakker |
| KRUSE | Boekholt |
| KRUSE | Dinkela |
| KRUSE | Goeman |
| KRUSE | Kramer |
| KRUSE | Krommenga |
| KRUSE | Postma |
| KRUSE | Thien |
| KUIPER | Ibelings |
| KUNDSCHAFT | Engelkes |
|