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Family name Kaltcheva (Kaltcheva , Калчева , Кальчева ) , across the world, is quite a rare last name. The cognomen Kaltcheva is habitual in Bulgaria, where it is quite a common surname, Ukraine, where it is quite a rare surname, and Kazakhstan, where it is a rare surname. In absolute terms, it is the most numerous in Eastern Europe, particularly Bulgaria, Ukraine, and Russia.