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Cognomen Ricco (Ricco , ريكو , リッコ) , in all the world, is a common surname. The cognomen Ricco is habitual in Cayman Islands, where it is quite a common surname, Italy, and Bosnia and Herzegovina, where it is quite a rare surname. Measured by absolute frequency, it most frequently occurs in Italy, Egypt, and the United States. Also, Ricco is the forename as well as the last name.