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Last name Otero (Oto , Otero , Altus ) , globally, is a widespread family name. The surname Otero is habitual in Latin America and the Caribbean, particularly Puerto Rico, where it is a common surname, Uruguay, where it is quite a common surname, and Panama (explore the name in all countries). Not in comparison with a country's population, the name is most common in Latin America and the Caribbean, particularly Argentina, Colombia, and Mexico. Very seldom, Otero is the forename as well as the last name.