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.

His film scores include Il bell'Antonio, Contempt, The 10th Victim, More Than a Miracle, The Deserter, The Light at the Edge of the World, Puppet on a Chain, Lucky Luciano, Camille 2000, The Nun and the Devil, Swept Away, Christ Stopped at Eboli, Fighting Back, and many Alberto Sordi movies. He is credited with over 300 soundtracks and compositions for radio, television, ballets and orchestra.

Piccioni won many prestigious prizes including the David di Donatello Award for the movie Swept Away (1975), Nastro d’argento Award for the movie Salvatore Giuliano by Francesco Rosi (1963), Prix International Lumière 1991, Anna Magnani Award 1975 and Vittorio De Sica Award 1979.