Cognomen Stefan Viorel (Stefan Viorel 
) , across the world, is a very rare surname. The family name Stefan Viorel is habitual in Romania, where it is a rare surname, and Spain, where it is an extremely rare surname. More prevalently, Stefan Viorel is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Stefan Viorel | Romania, Spain |