Family name Koštić (Koštić 
) , in the entire world, is a rare surname. The surname Koštić is characteristic of Southern Europe, particularly Croatia, where it is quite a rare surname, and Slovenia, where it is a rare surname.
Ana, Armin, Bojan, Petra, Petar, Denis, Damir, Drago, Jasna, Jakov, Josip, Ismet, Ivana, Ivona, Ivica, Marina, Marija, Matija, Sanela, Slavko, Bećir, Katica, Stipe, Selma, Samir, Matej, Lea, Iva, Mare, Mate, Maja, Mila, Alen, Alma, Ante, Amar, Lorena, Amra, Dora, Duje, Lara, Luka, Jozo, Jure, Enes, Vida, Ivan, Marin, Dino, and Jasmin