All over the world, Marius-Valentin (Marius-Valentin 
) is a very rare male given name. The forename Marius-Valentin is characteristic of Eastern Europe, particularly Romania, where it is a rare boy's name. Much less frequently, Marius-Valentin is the last name as well as the forename. Parts of the name also exists independently as a first name Marius, and a first name Valentin.
| VARIANT | COUNTRY |
|---|---|
| Marius-Valentin | Romania, Germany |