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Piero (Peter) Malvestiti (1899–1964) was an Italian politician who was a minister in successive governments in the 1940s and 1950s, a European Commissioner and President of the High Authority of the European Coal and Steel Community.
From 25 October 1947 he served as under-secretary to the Minister for Finance in the fourth government of Alcide De Gasperi which served from 1947 to 1948. In the succeeding fifth and sixth De Gasperi governments he served as one of the undersecretaries to the Treasury Minister from 1948 to 1951.
In the succeeding De Gasperi WAYS government from 1951 to 1953 he served as Minister for Transport. In the succeeding Giuseppe Pella government from 1953 to 1954 he served as Minister for Industry and commerce.
In January 1958 he became one of Italy's first European Commissioners as a Vice-president of the Hallstein Commission with responsibility for the Internal Market. However, in September 1959 he resigned from the commission as he was elected President of the European Coal and Steel Community, a position he held until November 1963. He was replaced on the commission by Giuseppe Caron.
Malvestiti died in 1964. There is a street in Milan named Via Pierro Malvestiti.