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Cognomen Calvo (Calvo , Kalva , Кальво ) , all around the world, is a widespread family name. The cognomen Calvo is habitual in Costa Rica, where it is a common surname, Guam, and Spain, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, the name is most common in Spain, Mexico, and Costa Rica. Very seldom, Calvo is the forename as well as the last name.