Family name Valentynov (Valentynov, Валентинов 
) , all over the world, is a rare surname. The surname Valentynov is habitual in Bulgaria, where it is a rare surname, Kazakhstan, and Russia. Not in comparison with a country's population, it is commonest in Russia, Kazakhstan, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Валентинов | Kazakhstan, Russia, Belarus, Bulgaria, Ukraine |