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Surname Zub (Zub , Зуб , Nzub ) , throughout the world, is a common family name. The cognomen Zub is characteristic of Eastern Europe, particularly Ukraine, where it is quite a common surname, Belarus, where it is quite a rare surname, and Poland. In absolute terms, it is commonest in Eastern Europe, particularly Ukraine, Russia, and Poland. Very seldom, Zub is the forename as well as the last name.