Family name Stefan-Dumitru (Stefan-Dumitru 
) , in the entire world, is an extremely rare last name. Much more frequently, Stefan-Dumitru is the forename as well as the last name. Parts of the name also exists independently as a first name Stefan, and a first name Dumitru.
| VARIANT | COUNTRY |
|---|---|
| Stefan-Dumitru | Romania |
Cauc, Iordache, and Stamatescu