Silvio Leonardi was an Italian politician. From 1979 to 1984, he served as a Member of the European Parliament (MEP). He was a member of the Communist Party of Italy. From 1978 to 1979 he served as Chair of the Committee on the Rules of Procedure and Petitions and Vice-Chair of the Committee on Economic and Monetary Affairs. From 1963 to 1979 he was also a member of the Chamber of Deputies.