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Cognomen Marinaro (Marinaro , Marinar ) , around the world, is quite a common family name. The cognomen Marinaro is habitual in Italy, where it is quite a rare surname, Argentina, and Switzerland, where it is a rare surname. Not in comparison with a country's population, it is commonest in Italy, the United States, and Argentina. Very seldom, Marinaro is the forename as well as the last name.