Family name Fedinskii (Fedinskii 
, Фединский 
) , all over the world, is a very rare surname. The family name Fedinskii is habitual in Russia, where it is a very rare surname, Kazakhstan, and Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Fedinskii | Russia, Kazakhstan |
| Фединский | Russia, Kazakhstan, Ukraine |