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Cognomen Mrozek (Mrozek , Славомир , Мрозек ) , globally, is quite a common family name. The family name Mrozek is characteristic of Poland, where it is quite a common surname, Czechia, where it is quite a rare surname, and Germany. Not in comparison with a country's population, it is commonest in Poland, the United States, and Germany. Also, Mrozek is the forename as well as the last name.