Pandulf of Pisa was a twelfth-century Italian cardinal, and biographer of several contemporary popes. He was a native of Rome. He was a nephew of Cardinal Hugo of Alatri. Under Pope Paschal II, and probably with the patronage of his uncle, Pandulf held the post of ostiarius at the papal court. It is deduced from his detailed description of the election of Pope Gelasius II on 24 January 1118 that he was present. On his coronation day, 10 March 1118, Pope Gelasius II elevated him to the rank of Lector and Exorcist. Pope Calixtus II ordained him a subdeacon.