Cognomen Tasov (Tasov 
, Тасов 
) , throughout the world, is a rare surname. The last name Tasov is habitual in Bulgaria, where it is quite a rare surname, North Macedonia, and Kazakhstan. Measured by absolute frequency, it is the most numerous in Kazakhstan, Bulgaria, and Azerbaijan. Very seldom, Tasov is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tasov | Germany, Kazakhstan, Russia, North Macedonia, Bulgaria |
| Тасов | Azerbaijan, Kazakhstan, Uzbekistan, Russia, Bulgaria |