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Family name Dauphin (Dauphin
, 多芬
, Delfín
) , worldwide, is a common last name. The cognomen Dauphin is habitual in Reunion, where it is quite a common surname, Luxembourg, and France, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in France, the United States, and Germany. Likewise, Dauphin is the forename as well as the last name.