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Last name Echegoyen (Echegoyen ) , in the world, is quite a rare cognomen. The surname Echegoyen is characteristic of Latin America and the Caribbean, particularly El Salvador, where it is quite a common surname, Uruguay, where it is quite a rare surname, and Argentina. In absolute terms, it is the most numerous in Latin America and the Caribbean, particularly El Salvador, Argentina, and Mexico. Very seldom, Echegoyen is the forename as well as the last name.