Last name Hilj (Hilj 
) , across the world, is a very rare family name. The last name Hilj is habitual in Slovenia, where it is quite a rare surname, Croatia, where it is a rare surname, and Sweden. Very seldom, Hilj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hilj | Sweden, Croatia, Italy, Slovenia, United States |