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Cognomen Kollár (Kollár , Kollar , ケラー ) , across the world, is a common last name. The family name Kollár is habitual in Eastern Europe, particularly Slovakia, where it is a common surname, Hungary, where it is quite a common surname, and Czechia, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in Slovakia, Hungary, and the United States. Much less frequently, Kollár is the forename as well as the last name.
Dea, Zita, Éva, Évi, Maria, Marci, Marek, Marva, Matej, Milan, Márk, Míra, Sári, Anton, Antal, Anita, Anett, Adél, Csaba, Barna, Bence, Boris, Igor, Imre, Ivan, Ildi, Dan, Jan, Majo, Miro, Alex, Anna, Adam, Kata, Petr, Reni, Bryan, Rita, Laci, Levi, Lili, Liza, Judr, Ján, Tomi, Edit, Erik, Fero, Dani, and Béla