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Family name Kozubek (Kozubek , Козубек ) , around the world, is quite a rare last name. The cognomen Kozubek is characteristic of Kyrgyzstan, where it is quite a rare surname, Poland, and Austria. Not in comparison with a country's population, it is commonest in Poland, Germany, and Kyrgyzstan. Also, Kozubek is the forename as well as the last name.