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Cognomen Masson (Masson , 马松 , Массон ) , worldwide, is a common surname. The last name Masson is characteristic of France, where it is quite a common surname, Iceland, and Belgium (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in France, Brazil, and the United States. Very seldom, Masson is the forename as well as the last name.