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 | Russia, Ukraine, United States, Hungary |
| Онофрийчук | Russia, Kazakhstan, Ukraine |