Cognomen Dopiryak (Dopiryak 
, Допиряк 
) , globally, is a very rare family name. The last name Dopiryak is characteristic of Eastern Europe, particularly Russia, where it is a very rare surname, and Ukraine, where it is an extremely rare surname. Much less frequently, Dopiryak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dopiryak | Italy, Russia |
| Допиряк | Russia, Ukraine |