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Family name Олійник (Olejnik , Olijnyk , Oliynyk ) , around the world, is a common surname. The surname Олійник is characteristic of Eastern Europe, particularly Ukraine, where it is a common surname, Poland, where it is quite a common surname, and Slovakia, where it is quite a rare surname. Not in comparison with a country's population, it most frequently occurs in Ukraine, Poland, and Germany. Much less frequently, Олійник is the forename as well as the last name.