Family name Eugen-Marius (Eugen-Marius 
) , throughout the world, is an extremely rare cognomen. Much more prevalently, Eugen-Marius is the forename as well as the last name. Parts of the name also exists independently as a first name Eugen, and a first name Marius.
| VARIANT | COUNTRY |
|---|---|
| Eugen-Marius | Germany, Romania |