Last name Holjak (Holjak 
, Холяк 
) , in the entire world, is a very rare surname. The surname Holjak is characteristic of Croatia, where it is a rare surname, Canada, where it is a very rare surname, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Holjak | Croatia, Canada |
| Холяк | Kazakhstan, Russia, Ukraine |