All around the world, Ružak (Ružak 
) is an extremely rare unknown gender forename. Much more prevalently, Ružak is the last name as well as the forename.
Dino, Zlatko, Martina, Siniša, Stjepan, Antonio, Dragica, Dražen, Višnja, Željko, Anamaria, Karmenka, Kristina, Krešimir, Dragutin, Tomislav, Nikolina, Zvonimir, Štefica, Margareta, Zvonko, Ivanka, Verica, Lucija, Ivan, Igor, Mario, Marko, Sanja, Anica, Berna, Božo, Karlo, Đurđica, Petar, Damir, Goran, Janko, Josip, Ivana, Ivica, Marija, Mladen, Lidija, Davor, and Štefanija