Family name Борбак (Борбак 
) , across the world, is a very rare surname. The surname Борбак is habitual in Eastern Europe, particularly Belarus, where it is a very rare surname, Ukraine, where it is an extremely rare surname, and Russia. Much less frequently, Борбак is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Борбак | Russia, Ukraine, Belarus |