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Last name Dudak (Dudak , Дудак ) , in the world, is quite a rare family name. The family name Dudak is habitual in Eastern Europe, particularly Slovakia, where it is quite a common surname, Czechia, where it is quite a rare surname, and Belarus. Not in comparison with a country's population, it is the most numerous in Turkey, Slovakia, and Ukraine. Very seldom, Dudak is the forename as well as the last name.