Cognomen Вассилев (Vassilev 
, Вассилев 
) , globally, is quite a rare surname. The last name Вассилев is characteristic of Bulgaria, where it is quite a common surname, Austria, where it is quite a rare surname, and Greece. Not in comparison with a country's population, it most frequently occurs in Bulgaria, the United States, and Austria. Very seldom, Вассилев is the forename as well as the last name.