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Cognomen Šumonja (Šumonja ) , throughout the world, is a rare surname. The surname Šumonja is habitual in Southern Europe, particularly Croatia, where it is quite a rare surname.
Mara, Branko, Dijana, Dušan, Duško, Dragan, Helena, Bogdan, Hrvoje, Ivanka, Marinko, Dragica, Nebojša, Katarina, Draginja, Veljko, Jadranka, Sofija, Sandra, Ivor, Igor, Zora, Milan, Milka, Sanja, Sanjin, Petar, David, Vlado, Ilija, Marija, Milica, Miloš, Danko, and Aleksandar