Surname Grygorchuk (Григорчук 
, Grygorchuk 
) , around the world, is quite a common family name. The surname Grygorchuk is characteristic of Eastern Europe, particularly Ukraine, where it is quite a common surname, Belarus, where it is quite a rare surname, and Russia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Григорчук | Kyrgyzstan, Russia, Belarus, Kazakhstan, Ukraine |
| Grygorchuk | Spain, Romania, Ukraine, Italy, Poland |