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Cognomen Kirstein (Kirstein , Кирштайн, Кирштейн ) , in the entire world, is quite a common surname. The surname Kirstein is habitual in Germany, where it is quite a rare surname, Denmark, and Sweden. Not in comparison with a country's population, it is commonest in Germany, the United States, and South Africa. Very seldom, Kirstein is the forename as well as the last name.