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Cognomen Lucero (Lucero , לוסרו ) , all over the world, is a widespread last name. The cognomen Lucero is characteristic of Argentina, where it is a common surname, Mexico, where it is quite a common surname, and Guam (explore the name in all countries). Measured by absolute frequency, it is commonest in Mexico, Argentina, and Philippines. Much less frequently, Lucero is the forename as well as the last name.