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Last name Poliak (Poliak
, Поляк
, Полиак
) , in all the world, is a common cognomen. The family name Poliak is habitual in Eastern Europe, particularly Slovakia, where it is quite a common surname, Ukraine, and Belarus. Not in comparison with a country's population, it most frequently occurs in Eastern Europe, particularly Ukraine, Russia, and Slovakia. Much less frequently, Poliak is the forename as well as the last name.