Family name Василян (Василян 
, Vasilian 
, Vasilyan 
) , all around the world, is quite a rare surname. The last name Василян is habitual in Armenia, where it is quite a rare surname, Moldova, and Russia, where it is a rare surname. Likewise, Василян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Василян | Russia, Belarus, Kazakhstan, Ukraine, Armenia |
| Vasilian | Romania, Canada, Moldova, United States, Brazil |
| Vasilyan | France, Russia, Canada, Armenia, United States |