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Cognomen Nigro (Nigro , Нигро) , all over the world, is a common last name. The last name Nigro is habitual in Bermuda, where it is quite a common surname, Italy, and Algeria, where it is quite a rare surname. In absolute terms, it is commonest in Italy, the United States, and Argentina. Very seldom, Nigro is the forename as well as the last name.