Family name Гудмундур (Guðmundur 
, Гудмундур 
) , all over the world, is an extremely rare cognomen. The cognomen Гудмундур is habitual in Northern Europe, particularly Iceland, where it is quite a rare surname. Predominantly, Гудмундур is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Guðmundur | Sweden, Norway, Iceland, United States, Denmark |
| Гудмундур | Russia, Ukraine |