Surname Hizhniak (Hizhniak 
, Хижниак 
) , across the world, is a rare family name. The family name Hizhniak is characteristic of Russia, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Hizhniak | United States |
| Хижниак | Russia |