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Cognomen Khaitin (Khaitin , Хайтин ) , in the entire world, is a rare last name. The cognomen Khaitin is habitual in Belarus, where it is a rare surname, Russia, where it is a very rare surname, and Canada, where it is an extremely rare surname. In absolute terms, it is commonest in Russia, Belarus, and Germany. Very seldom, Khaitin is the forename as well as the last name.