Wesley Octavius Forsyth (January 26, 1859 - May 7, 1937) was a Canadian pianist and composer.
He was born in Markham Township near Toronto, and studied music in Leipzig under Salomon Jadassohn , Martin Krause , Gustav Schreck and others. His first success was the Suite in E minor (1888). Having failed to achieve success as an instrumental performer, he returned to Toronto to teach. By 1923, his pupils had formed a "Forsyth Club". Most of his work was written for the piano and voice.