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Worldwide, Kálmán (Kálmán , Калман , קלמן ) is quite a rare male given name. The given name Kálmán is habitual in Eastern Europe, particularly Hungary, where it is quite a common boy's name, Romania, where it is quite a rare male name, and Slovakia. Measured by absolute frequency, it is commonest in Eastern Europe, particularly Hungary, Romania, and Ukraine. Likewise, Kálmán is the last name as well as the forename.
Kálmán is also a name for the fictitious and mythical characters: Kálmán Zsupán , the operatic character in the opera Der Zigeunerbaron, The Gypsy Baron and Kálmán , the operatic character in the opera Mária Bátori, Bátori Mária.