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Family name Shostak (Szostak , Шостак , Shostak ) , all around the world, is a common cognomen. The surname Shostak is characteristic of Eastern Europe, particularly Belarus, where it is quite a common surname, Ukraine, and Poland. Measured by absolute frequency, it most frequently occurs in Eastern Europe, particularly Ukraine, Poland, and Russia. Also, Shostak is the forename as well as the last name.