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Cognomen Vivar (Vivar , Вивар) , in the entire world, is a common last name. The cognomen Vivar is habitual in Latin America and the Caribbean, particularly Guatemala, where it is quite a common surname, Paraguay, and Chile. Not in comparison with a country's population, the name is most common in Mexico, Philippines, and Guatemala. Very seldom, Vivar is the forename as well as the last name.