Cognomen Gusavac (Gusavac 
) , worldwide, is a very rare family name. The family name Gusavac is habitual in Serbia, where it is quite a rare surname, Australia, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Gusavac | Serbia, United States, Australia |