Tip: To quickly navigate to a surname board, enter the surname in the "Find a Board" search above.
| Board | Threads | Messages | Last Post |
| Knufken | 1 | 2 | 5 Jun 2012 |
| Knull | 5 | 11 | 15 Jan 2015 |
| Knupe | 1 | 1 | 20 Apr 2000 |
| Knupfer | 1 | 2 | 3 Mar 2004 |
| Knupp | 34 | 170 | 12 May 2014 |
| Knuppe | 2 | 4 | 9 Jul 2006 |
| Knuppel | 11 | 41 | 7 Feb 2014 |
| Knuppenbergh | 1 | 1 | 23 Sep 2000 |
| Knuppenburg | 4 | 19 | 9 Aug 2008 |
| Knurowski | 1 | 1 | 30 Jul 2001 |