Surname Posavec-Kovač (Posavec-Kovač 
) , in all the world, is a very rare cognomen. The cognomen Posavec-Kovač is characteristic of Southern Europe, particularly Croatia, where it is quite a rare surname. Parts of the name also exists independently as a last name Posavec, and a last name Kovač.
| VARIANT | COUNTRY |
|---|---|
| Posavec-Kovač | Croatia |