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Cognomen ארויו (Arroyo , Aroyo , ארויו ) , around the globe, is a widespread last name. The surname ארויו is habitual in Latin America and the Caribbean, particularly Costa Rica, where it is a common surname, Puerto Rico, and Mexico, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, it is the most numerous in Mexico, Peru, and the United States. Very seldom, ארויו is the forename as well as the last name.