Salah El Mahdi (Tunisian Arabic: صالح المهدي; born Mohamed Ibn Abderrahmane Ben Salah Mehdi Chérifi on February 9, 1925 in Tunis and died September 12, 2014 in Tunis) was a Tunisian musicologist, conductor, composer, flautist, music critic and judge.

Born in Tunis in 1925, he graduated from Zaytuna University in 1941 and then at the law school and National School of Administration. He obtained a Ph.D. in musicology in 1981 and a doctorate in letters at the University of Poitiers.

At the age of 18 he left the capital of Tunis to La Marsa and gave music lessons to students. In 1949, he became director of the institution and ensemble there and was appointed honorary member of the SACEM. He was appointed as a judge on November 11, 1951, while assuming the job of music critic in several newspapers. In theater, he performed several roles with the troupe El Kaoukab of Tunis, and wrote plays for radio.