Around the world, Olishchuk (Olishchuk 
, Олишчук , Олищук 
) is a very rare male forename. The forename Olishchuk is characteristic of Eastern Asia, particularly China, where it is an extremely rare male name. More frequently, Olishchuk is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Olishchuk | China, Russia, Czechia, Estonia, Poland |
| Олишчук | Russia |
| Олищук | Kazakhstan, Russia, Ukraine |