Across the world, Selmer-Olsen (Selmer-Olsen 
) is an extremely rare unknown gender first name. Much more prevalently, Selmer-Olsen is the last name as well as the forename. Parts of the name also exists independently as a last name Selmer, and a last name Olsen.
| VARIANT | COUNTRY |
|---|---|
| Selmer-Olsen | United Kingdom, United States, Norway, South Africa |