Mario Rossi (29 March 1902, Bitetto – 29 June 1992, Rome) was an Italian conductor, noted for his solid and meticulous readings of a repertory ranging from Italian classics to Russian moderns such as Prokofiev, to the German operatic classicist Christoph Willibald Gluck.

Appointed resident conductor of the Maggio Musicale Fiorentino in Florence (1937–46), he made his debut on the podium there in 1937 with Mascagni's Iris.

The following year he led the premiere of Gian Francesco Malipiero's opera Antonio e Cleopatra.

As well as establishing himself in the standard Italian repertory, he took part in many revivals of ancient works such as Galuppi's Il filosofo di campagna, Monteverdi's Il ritorno d'Ulisse in Patria, and Piccinni's La buona figliuola.

He elevated this group to an international level, making guest appearances in Brussels (1950), Vienna, (1951), and Salzburg (1952).