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Cognomen Krystyn (Krystyn , Кристин ) , all over the world, is quite a rare last name. The last name Krystyn is characteristic of Poland, where it is quite a rare surname, Czechia, where it is a rare surname, and Armenia. Not in comparison with a country's population, it most frequently occurs in Eastern Europe, particularly Poland, Russia, and Czechia. Likewise, Krystyn is the forename as well as the last name.