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Surname Gwozdz (Gwozdz , Gwóźdź ) , throughout the world, is quite a common last name. The cognomen Gwozdz is characteristic of Poland, where it is quite a common surname, Czechia, where it is a rare surname, and Germany. Measured by absolute frequency, it most frequently occurs in Poland, the United States, and Germany. Much less frequently, Gwozdz is the forename as well as the last name.