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Family name Tych (Tych , Тыш , טיך ) , in the world, is a rare cognomen. The cognomen Tych is habitual in Kazakhstan, where it is a rare surname, Israel, and Poland, where it is a very rare surname. Measured by absolute frequency, the name is most common in Kazakhstan, Russia, and the United States. Much less frequently, Tych is the forename as well as the last name.