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Family name Champy (Champy ) , across the world, is quite a rare cognomen. The last name Champy is habitual in Laos, where it is quite a rare surname, France, and Cameroon, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in France, Cameroon, and the United States. Likewise, Champy is the forename as well as the last name.