Globally, Koštan (Koštan ) is an extremely rare unknown gender first name. Much more frequently, Koštan is the last name as well as the forename.
Kostan
Ana, Miljenko, Gordana, Mirjana, Vlatka, Renata, Ankica, Slavka, Marija, Ivica, Ivana, Frane, Josip, Tomislav, Jakov, Stipe, Milan, Marko, Mario, Ivan, Nada, Dina, Roko, Ante, Maja, Mate, Ive, Davor, and Zvonimir
) is an extremely rare unknown gender first name. Much more frequently, Koštan is the last name as well as the forename.