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Surname Lujan (Lujan , Luján , 卢汉 ) , all around the world, is a widespread last name. The family name Lujan is characteristic of Guam, where it is a common surname, Peru, where it is quite a common surname, and Argentina (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in Latin America and the Caribbean, particularly Argentina, Mexico, and Peru. Much less frequently, Lujan is the forename as well as the last name.