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Cognomen Elion (Elion , Элаян ) , throughout the world, is a common surname. The surname Elion is habitual in the Democratic Republic of the Congo, where it is a common surname, the Republic of the Congo, where it is quite a rare surname, and Albania. Not in comparison with a country's population, it is commonest in the Democratic Republic of the Congo, France, and the United States. Very seldom, Elion is the forename as well as the last name.