Cognomen Dubchuk (Dubchuk 
) , around the world, is a very rare last name. The family name Dubchuk is characteristic of Estonia, where it is a rare surname, Argentina, where it is a very rare surname, and Ukraine, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Argentina, Russia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Dubchuk | Ukraine, Estonia, Russia, Argentina, United States |