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Globally, Koščak (Koščak , Кощак ) is an extremely rare unknown gender given name. Predominantly, Koščak is the last name as well as the forename.
Ana, Mirko, Boris, Bojan, Karlo, Klara, Petra, Peter, Denis, Dejan, Dario, Darko, Darja, Davor, Damir, Domen, Lovro, Jakov, Josip, Tajda, Nenad, Vesna, Mateo, Manca, Marko, Marta, Eva, Mara, Maja, Miha, Sara, Seba, Alen, Ante, Anja, Anka, Filip, Kata, Lana, Luka, Jana, Tomo, Nada, Nika, Ines, Ivan, Igor, Mario, Dora, and Irena