Cognomen Johsen (Johsen 
) , in the world, is a very rare last name. The surname Johsen is characteristic of Denmark, where it is a very rare surname, Thailand, and Norway. Not in comparison with a country's population, it is commonest in Thailand, Malaysia, and Nigeria. Likewise, Johsen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Johsen | Tanzania, Thailand, Nigeria, Malaysia, Germany |