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Family name Rechin (Requin , Rechin ) , across the world, is quite a rare last name. The cognomen Rechin is characteristic of Mauritius, where it is quite a rare surname, Algeria, where it is a rare surname, and France. Not in comparison with a country's population, it is commonest in Algeria, France, and Peru. Much less frequently, Rechin is the forename as well as the last name.