Yevgeny Aleksandrovich Mravinsky (Russian: Евге́ний Алекса́ндрович Мрави́нский) (4 June [O.S. 22 May] 1903 – 19 January 1988) was a Soviet-Russian conductor.
Mravinsky was born in Saint Petersburg. The soprano Yevgeniya Mravina was his aunt. His father Alexandr Konstantinovich Mravinsky died in 1918, and in that same year, he began to work backstage at the Mariinsky Theatre. He first studied biology at the university in Leningrad, before going to the Leningrad Conservatory to study music. He served as a ballet repetiteur from 1923 to 1931. His first public conducting appearance was in 1929. Through the 1930s he conducted at the Kirov Ballet and Bolshoi Opera. In September 1938, he won the All-Union Conductors Competition in Moscow.
In October 1938, Mravinsky took up the post that he was to hold until 1988: principal conductor of the Leningrad Philharmonic Orchestra, with whom he had made his debut as a conductor in 1931. Under Mravinsky, the Leningrad Philharmonic gained a legendary reputation, particularly in Russian music such as Tchaikovsky and Shostakovich. During World War II, Mravinsky and the orchestra were evacuated to Siberia. But members of the Leningrad Philharmonic's reserve orchestra and the Leningrad Radio Orchestra were left behind in the siege of Leningrad, so it fell to Karl Eliasberg to conduct the surviving musicians in the Leningrad premiere of the Symphony No.7 "Leningrad" by Shostakovich.