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Family name Donchin (Donchin , 唐钦, דונחין ) , in the world, is a very rare surname. The surname Donchin is habitual in Israel, where it is a rare surname, the United States, where it is a very rare surname, and Germany, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in the United States, Israel, and Nigeria. Very seldom, Donchin is the forename as well as the last name.