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Surname Irigoyen (Irigoyen , Irigoien ) , throughout the world, is a common cognomen. The last name Irigoyen is habitual in Latin America and the Caribbean, particularly Uruguay, where it is quite a common surname, Argentina, and Nicaragua. Measured by absolute frequency, it is the most numerous in Mexico, Argentina, and Spain. Much less frequently, Irigoyen is the forename as well as the last name.