Surname Васов (Vasov 
, Васов 
) , around the world, is a rare last name. The cognomen Васов is habitual in Serbia, where it is quite a rare surname, Bulgaria, and Australia, where it is a rare surname. Measured by absolute frequency, it is the most numerous in Serbia, India, and Bulgaria.
| VARIANT | COUNTRY |
|---|---|
| Vasov | Serbia, Bulgaria, Australia, India, Russia |
| Васов | Kazakhstan, Bulgaria, Kyrgyzstan, Russia, Ukraine |