Diana Maud McIntosh (March 4, 1932 – December 22, 2022) was a Canadian composer and pianist who was based in Winnipeg, Manitoba.
Hailed by the Canadian Encyclopedia as "a champion of 20th-century Canadian music", she premiered piano works by such Canadian composers as Peter Allen (Logos, 1977), Norma Beecroft (Cantorum Vitae, 1981), Robert Daigneault (Corridors, Reminiscences, 1977), Alexina Louie (Pearls, 1980), Marjan Mozetich (Apparition 1985), Boyd McDonald (Fantasy, 1974), Jean Papineau-Couture (Les Arabesques d'Isabelle, 1990), Ann Southam (Four Bagatelles, 1964 & Integruities, 1973 & Inter-views, 1975), Robert Turner (Homage to Melville, 1974), and John Winiarz (Vortices, 1977).
[1] She was one of the founding artistic directors of the Winnipeg-based new music organization GroundSwell.
In 1972, she received a Bachelor of Music from the University of Manitoba where she was a pupil of Alma Brock-Smith and Robert Turner.
She also studied with Adele Marcus at the Aspen Music Festival and School and privately in New York City.