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Family name Дюбуа (Dubois , Дюбуа , Dyubua ) , worldwide, is a widespread cognomen. The last name Дюбуа is characteristic of France, where it is a common surname, Belgium, where it is quite a common surname, and Guadeloupe (explore the name in all countries). In absolute terms, it is commonest in France, the United States, and Belgium. Very seldom, Дюбуа is the forename as well as the last name.