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Surname Dubien (Dubien ) , all over the world, is quite a rare family name. The family name Dubien is characteristic of Benin, where it is quite a rare surname, France, and Cameroon, where it is a rare surname. In absolute terms, the name is most common in France, the Democratic Republic of the Congo, and Cameroon. More prevalently, Dubien is the forename as well as the last name.