Surname Tonje-Karin (Tonje-Karin 
) , in the world, is an extremely rare last name. Much more prevalently, Tonje-Karin is the forename as well as the last name. Parts of the name also exists independently as a first name Tonje, and a first name Karin.
| VARIANT | COUNTRY |
|---|---|
| Tonje-Karin | Norway |