Cognomen Gantsyuk (Gantsyuk 
, Ганцюк 
) , in all the world, is a rare family name. The last name Gantsyuk is characteristic of Ukraine, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Gantsyuk | Russia, Ukraine, United States |
| Ганцюк | Kazakhstan, Russia, Ukraine |