Kenneth Howard Peacock (7 April 1922 – 22 November 2000) was a Canadian ethnomusicologist, composer, and pianist. He was a leading authority in Canadian enthnomusicology, and his research and publications in that field had a profound impact on the folk music revival in Canada of the mid to late 20th century. He was an associate of the Canadian Music Centre, a founding member of the , and a member of the Canadian League of Composers. In 1982 he was named a Member of the Order of Canada, and in 1998 was awarded the Marius Barbeau Medal by the .