Last name Dubjak (Dubjak 
, Дубяк 
) , all over the world, is a rare surname. The surname Dubjak is characteristic of Eastern Europe, particularly Czechia, where it is a rare surname, Belarus, and Ukraine, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Eastern Europe, particularly Czechia, Ukraine, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Dubjak | United Kingdom, Czechia |
| Дубяк | Russia, Belarus, Ukraine |
| petr dubjak (b. 1955) |
|
|
| martin dubjak CZ (b. 1988) |
|