Surname Gridunov (Gridunov 
, Гридунов 
) , around the globe, is a rare family name. The last name Gridunov is habitual in Russia, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Gridunov | Germany, Russia |
| Гридунов | Kazakhstan, Russia, Ukraine |