Mario Bertoncini (September 27, 1932 – January 19, 2019) was an Italian composer, pianist, and music educator. He was born in Rome. In 1962 he was awarded the Nicola d'Atri Prize by the Accademia Nazionale di Santa Cecilia for his "Sei Pezzi per orchestra" and in 1965 he was awarded both the Gaudeamus International Composers Award and the Fondation européenne de la Culture prize for "Quodlibet".