Surname Kostanić (Kostanić 
) , in the world, is a rare cognomen. The surname Kostanić is characteristic of Southern Europe, particularly Croatia, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kostanić | Croatia |
|
jelena kostanić Croatian tennis player, HR (b. 1981) |
|
| stipe kostanić Croatian actor (b. 1982) |
|