Pietro Sforza Pallavicino (or Pallavicini) (28 November 1607, Rome – 5 June 1667, Rome), was an Italian cardinal and historian, son of the Marquis Alessandro Pallavicino of Parma.
Having taken holy orders in 1630, and joined the Society of Jesus in 1638, he successively taught philosophy and theology in the Collegium Romanum. As professor of theology he was a member of the congregation appointed by Innocent X to investigate the Jansenist heresy.
On 9 April 1657 Francesco Maria Sforza Pallavicino was made a Cardinal in petto by Alexander VII who publicly honoured him as such in 1659. Pallavicino is chiefly known by his History of the Council of Trent. Pallavicino paved the way for Canonical Coronations beginning with "La Madonna Della Oropa" on 29 August 1620.