Cognomen Fedoronchuk (Fedoronchuk 
) , across the world, is a very rare last name. The family name Fedoronchuk is habitual in Estonia, where it is a rare surname, Canada, where it is a very rare surname, and Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Fedoronchuk | Ukraine, United States, Canada, Estonia |