Family name Nicolsen (Nicolsen 
) , in all the world, is a very rare surname. The cognomen Nicolsen is characteristic of Venezuela, where it is an extremely rare surname, and the United States. Much less frequently, Nicolsen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nicolsen | South Africa, Brazil, Venezuela, United States, Philippines |
| eugen nicolsen |
|
|
| annemarie nicolsen |
|