Ivan Ivanovich Sollertinsky (1902 - 1944) was a Russian polymath of the Soviet period. He was an expert in theatre and Romance languages, but is best known for his musical career. He was a professor at the Leningrad Conservatory , as well as artistic director of the Leningrad Philharmonic. In these capacities he was an active promoter of Mahler's music in the Soviet Union. From 1927 he was a close friend of Dmitri Shostakovich, who dedicated his Second Piano Trio to him after his death in Novosibirsk on 11 February 1944.
