Surname Belashuk (Belashuk 
, Белашук 
) , worldwide, is a rare last name. The surname Belashuk is characteristic of Eastern Europe, particularly Belarus, where it is a rare surname, Russia, where it is a very rare surname, and Ukraine. Measured by absolute frequency, it is commonest in Russia, Belarus, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Belashuk | Belarus, United States |
| Белашук | Belarus, Russia, Ukraine |