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Cognomen Regin (Regin , Rauno , 雷金 ) , around the world, is quite a rare last name. The surname Regin is habitual in Iceland, where it is quite a rare surname, Israel, and Peru, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Mexico, Peru, and France. More frequently, Regin is the forename as well as the last name.