Surname Čupan (Чупан 
, Čupan 
) , throughout the world, is a very rare family name. The last name Čupan is habitual in Croatia, where it is a rare surname, and Ukraine, where it is an extremely rare surname. More prevalently, Čupan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Чупан | Ukraine, Russia |
| Čupan | Croatia |