Cognomen Mihalj (Mihalj 
, Михаљ) , throughout the world, is quite a rare surname. The surname Mihalj is habitual in Southern Europe, particularly Croatia, where it is quite a common surname, Bosnia and Herzegovina, and Serbia, where it is quite a rare surname. Also, Mihalj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mihalj | Germany, Serbia, Croatia, Hungary, Bosnia and Herzegovina |
| miroslav m mihalj chess player (b. 1973) |
|
|
| boris mihalj SI (b. 1966) |
|
|
| martina mihalj researcher |
|
|
| mario mihalj researcher |
|
|
| maks mihalj researcher (ORCID 0000-0002-6298-7985) |
|
|
| ivan mihalj Croatian volleyball player, RU (b. 1990) |
|