Family name Brčić-Šušak (Brčić-Šušak 
) , all around the world, is a very rare cognomen. The surname Brčić-Šušak is habitual in Southern Europe, particularly Croatia, where it is a rare surname. Parts of the name also exists independently as a last name Brčić, and a last name Šušak.
| VARIANT | COUNTRY |
|---|---|
| Brčić-Šušak | Croatia |