Maximilian Raoul Steiner (May 10, 1888 – December 28, 1971) was an Austrian-born American music composer for theatre and films, as well as a conductor. He was a child prodigy who conducted his first operetta when he was twelve and became a full-time professional, either composing, arranging, or conducting, when he was fifteen.

Steiner worked in England, then Broadway, and in 1929 he moved to Hollywood, where he became one of the first composers to write music scores for films. He is referred to as "the father of film music", as Steiner played a major part in creating the tradition of writing music for films, along with composers Dimitri Tiomkin, Franz Waxman, Erich Wolfgang Korngold, Alfred Newman, Bernard Herrmann, and Miklós Rózsa.