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Cognomen Legui (乐贵 , Legui ) , all over the world, is a rare last name. The surname Legui is habitual in Latin America and the Caribbean, particularly Argentina, where it is a very rare surname, Colombia, and Chile. Not in comparison with a country's population, it is commonest in China, Argentina, and Colombia. More frequently, Legui is the forename as well as the last name.