Vittorio Gui (14 September 1885 – 16 October 1975) was an Italian conductor, composer, musicologist and critic.

Gui was born in Rome in 1885. He graduated in humanities at the University of Rome and also studied composition at the Accademia Nazionale di Santa Cecilia; his principal composition teachers were the noted composers Giacomo Setaccioli and Stanislao Falchi. His style was "impressionistic with characteristic Italian traits".