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Surname Niz (Niz
) , worldwide, is a common last name. The last name Niz is characteristic of Latin America and the Caribbean, particularly Argentina, where it is quite a common surname, Paraguay, and Uruguay, where it is quite a rare surname. In absolute terms, it is the most numerous in Latin America and the Caribbean, particularly Argentina, Brazil, and Guatemala. Much less frequently, Niz is the forename as well as the last name.