Cognomen Greganovic (Greganovic 
) , across the world, is a very rare last name. The last name Greganovic is habitual in Slovenia, where it is quite a rare surname, and Germany, where it is an extremely rare surname. Very seldom, Greganovic is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Greganovic | Germany, Slovenia |