Cognomen Севастян-Валент (Севастян-Валент 
) , across the world, is an extremely rare surname. Much more frequently, Севастян-Валент is the forename as well as the last name. Parts of the name also exists independently as a first name Севастян, and a first name Валент.
| VARIANT | COUNTRY |
|---|---|
| Севастян-Валент | Ukraine |