Pietro di Miso was Italian cardinal. He was elevated to the cardinalate by Pope Adrian IV in the consistory of February 1158. Initially he was cardinal-deacon of S. Eustachio, but in 1166 he was promoted to the order of cardinal-priests and received titulus San Lorenzo in Damaso. After the double papal election in 1159 he supported the obedience of Pope Alexander III and served as his legate in Hungary. He signed the papal bulls between April 24, 1158 and July 17, 1174.