Erik William Chisholm (4 January 1904 – 8 June 1965) was a Scottish composer, pianist, organist and conductor often known as "Scotland's forgotten composer". According to his biographer, Chisholm "was the first composer to absorb Celtic idioms into his music in form as well as content, his achievement paralleling that of Bartók in its depth of understanding and its daring", which led to his nickname of "MacBartók". He was also a founder of the Celtic Ballet and, together with Margaret Morris, created the first full-length Scottish ballet, The Forsaken Mermaid. He was also the dean and director of the South African College of Music at the University of Cape Town for 19 years. Chisholm founded the South African College of Music opera company in Cape Town and was a vital force in bringing new operas to Scotland, England and South Africa. By the time of his death in 1965, he had composed over a hundred works.