Worldwide, Zheljko (Жељко 
, Zheljko 
) is quite a rare masculine first name. The given name Zheljko is characteristic of Southern Europe, particularly Serbia, where it is quite a common boy's name. Very seldom, Zheljko is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Жељко | Serbia |
| Zheljko | North Macedonia |