Cognomen Тохтасун (Тохтасун 
) , in the world, is an extremely rare family name. The surname Тохтасун is habitual in Central Asia, particularly Kyrgyzstan, where it is a very rare surname. Much more prevalently, Тохтасун is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Тохтасун | Kyrgyzstan, Kazakhstan, Russia |