Family name Feczak (Feczak 
, Фецак 
) , throughout the world, is a rare cognomen. The surname Feczak is habitual in Eastern Europe, particularly Hungary, where it is a rare surname, Ukraine, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Feczak | Hungary |
| Фецак | Ukraine, Russia |