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Family name Riofrio (Riofrio
) , in all the world, is quite a common last name. The cognomen Riofrio is habitual in Latin America and the Caribbean, particularly Peru, where it is quite a rare surname, Ecuador, and Argentina, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Latin America and the Caribbean, particularly Peru, Mexico, and Ecuador. Very seldom, Riofrio is the forename as well as the last name.