Cognomen Hermannsen (Hermannsen 
) , in all the world, is a rare last name. The surname Hermannsen is characteristic of Norway, where it is a rare surname, Denmark, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Hermannsen | Germany, Denmark, Norway, United States |
| hans hermannsen German police officer, DE (b. 1891) |
|
|
| julian hermannsen |
|