Last name Василен (Vasilen 
, Василен 
, Vassilen 
) , throughout the world, is a very rare surname. The last name Василен is habitual in Greece, where it is a rare surname, and Ukraine, where it is an extremely rare surname. More frequently, Василен is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vasilen | Bulgaria, Greece, Romania, United States |
| Василен | Bulgaria, Ukraine |
| Vassilen | United States, Greece, Spain |