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Cognomen Kuczuk (Kuczuk , Кучук , Куцук ) , all over the world, is quite a rare surname. The cognomen Kuczuk is habitual in Belarus, where it is quite a common surname, Ukraine, where it is quite a rare surname, and Kazakhstan, where it is a rare surname. Measured by absolute frequency, the name is most common in Eastern Europe, particularly Ukraine, Belarus, and Russia. Very seldom, Kuczuk is the forename as well as the last name.