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Last name Lukacs (Lukacs , Lukács , Лукач ) , in all the world, is a common cognomen. The cognomen Lukacs is habitual in Eastern Europe, particularly Hungary, where it is a common surname, Romania, where it is quite a common surname, and Slovakia. In absolute terms, it most frequently occurs in Eastern Europe, particularly Hungary, Romania, and Ukraine. Very seldom, Lukacs is the forename as well as the last name.