Pietro Chesi (Italian pronunciation: [ˈpjɛːtro ˈkɛːzi]; 24 November 1902 – 15 August 1944) was an Italian cyclist.

He was a professional from 1925 to 1934 and won Milan–San Remo in 1927 with an attack on the Passo del Turchino. He left the favorite to win, Alfredo Binda, 9 minutes behind.

A supporter of Mussolini and a member of the Blackshirts, Chesi was captured by anti-fascist partisans, who later executed him.