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Cognomen Riojas (Riojas
) , throughout the world, is a common family name. The surname Riojas is habitual in Latin America and the Caribbean, particularly Peru, where it is quite a common surname, Mexico, where it is quite a rare surname, and Bolivia. Measured by absolute frequency, it is the most numerous in Mexico, Peru, and the United States.
VARIANT | COUNTRY |
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Riojas | Bolivia, Mexico, Colombia, United States, Peru |