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Last name Rosset (Rosset , Russet , רוסט ) , in the world, is quite a common cognomen. The cognomen Rosset is characteristic of Western Europe, particularly Switzerland, where it is quite a common surname, France, where it is quite a rare surname, and Luxembourg. In absolute terms, the name is most common in France, Brazil, and Switzerland. Very seldom, Rosset is the forename as well as the last name.