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Surname Rotondo (Rotondo , Ротондо) , in the entire world, is a common cognomen. The last name Rotondo is habitual in Italy, where it is quite a common surname, Argentina, where it is quite a rare surname, and Luxembourg. In absolute terms, the name is most common in Italy, the United States, and Argentina. Much less frequently, Rotondo is the forename as well as the last name.