Family name Tomassin (Tomassin 
) , around the world, is a very rare surname. The last name Tomassin is habitual in France, where it is a very rare surname, Argentina, and Canada. Very seldom, Tomassin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tomassin | Canada, Mexico, France, Argentina, South Africa |