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Surname Joubert (Joubert , جوبير , Жубер ) , in the world, is a common last name. The cognomen Joubert is characteristic of Seychelles, where it is a common surname, South Africa, where it is quite a common surname, and British Virgin Islands (explore the name in all countries). Measured by absolute frequency, it is commonest in South Africa, France, and the United States. Very seldom, Joubert is the forename as well as the last name.