Piero Piccioni (December 6, 1921 – July 23, 2004) was an Italian film score composer and lawyer.

A pianist, organist, conductor, composer, he was also the prolific author of more than 300 film soundtracks. He was influenced in the use of jazz by 20th century classical composers and American films. Piero Piccioni came into contact with the movie world in Rome during the fifties, when he was a practicing lawyer securing movie rights for Italian producers such as Titanus and De Laurentiis. Many directors sought Piero Piccioni to score the soundtracks for their films: Francesco Rosi, Mario Monicelli, Alberto Lattuada, Luigi Comencini, Luchino Visconti, Antonio Pietrangeli, Bernardo Bertolucci, Roberto Rossellini, Vittorio De Sica, Lina Wertmuller, Tinto Brass, Dino Risi, and others.