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Cognomen Iuliano (Iuliano ) , around the world, is quite a common family name. The surname Iuliano is characteristic of Italy, where it is quite a common surname, Switzerland, where it is quite a rare surname, and Argentina, where it is a rare surname. In absolute terms, it is the most numerous in Italy, the United States, and Argentina. Much less frequently, Iuliano is the forename as well as the last name.