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Worldwide, Koller (Koller , كولر , Коллер ) is a rare unisex first name. The first name Koller is habitual in Austria, where it is a rare epicene name, Hungary, and Switzerland. In absolute terms, it is commonest in Austria, Iraq, and Hungary. More prevalently, Koller is the last name as well as the forename.
Koller is also a name for the fictitious and mythical characters: .