Last name Іштван-Балаж (Іштван-Балаж 
) , across the world, is an extremely rare family name. Much more frequently, Іштван-Балаж is the forename as well as the last name. Parts of the name also exists independently as a first name Іштван, and a last name Балаж.
| VARIANT | COUNTRY |
|---|---|
| Іштван-Балаж | Ukraine |