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Surname Acuna (Acuña , Acuna , Акуна ) , all over the world, is a widespread cognomen. The family name Acuna is habitual in Latin America and the Caribbean, particularly Costa Rica, where it is a common surname, Paraguay, and Argentina (explore the name in all countries). Measured by absolute frequency, the name is most common in Latin America and the Caribbean, particularly Argentina, Mexico, and Colombia. Much less frequently, Acuna is the forename as well as the last name.