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Cognomen كيرستين (Kerstin , Kiersten , كيرستين ) , throughout the world, is quite a rare family name. The last name كيرستين is characteristic of Sweden, where it is quite a rare surname, Austria, and Germany. Measured by absolute frequency, it most frequently occurs in Germany, Sweden, and Spain. Much more frequently, كيرستين is the forename as well as the last name.