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Cognomen Buten (Buten , Byyt) , in the world, is a rare last name. The surname Buten is habitual in the Dominican Republic, where it is quite a rare surname, Germany, where it is a rare surname, and Bulgaria. Measured by absolute frequency, the name is most common in the Dominican Republic, Germany, and the United States. Much less frequently, Buten is the forename as well as the last name.