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