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Cognomen Olivas (Olivas , Оливас) , all around the world, is a common last name. The family name Olivas is habitual in Latin America and the Caribbean, particularly Nicaragua, where it is a common surname, Mexico, where it is quite a common surname, and Costa Rica. Measured by absolute frequency, this name is the most popular in Mexico, Nicaragua, and the United States. Very seldom, Olivas is the forename as well as the last name.