Cognomen Knútur (Knútur 
) , globally, is an extremely rare last name. Predominantly, Knútur is the forename as well as the last name.
| jón knútur (b. 1150) |
|
Knútsson, Jónsson, Birgisson, Rúnarsson, Henrýsson, Óskarsson, Ólafsson, Otterstedt, and Kristjánsson