Cognomen Božić-Brnić (Božić-Brnić 
) , across the world, is a very rare last name. The family name Božić-Brnić is characteristic of Southern Europe, particularly Croatia, where it is a rare surname. Parts of the name also exists independently as a last name Božić, and a last name Brnić.
| VARIANT | COUNTRY |
|---|---|
| Božić-Brnić | Croatia |