Throughout the world, Onofriychuk (Onofriychuk 
, Онофрийчук 
) is an extremely rare unknown gender given name. Predominantly, Onofriychuk is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Onofriychuk | Hungary, Ukraine, United States, Russia |
| Онофрийчук | Kazakhstan, Russia, Ukraine |