Melbourne A. Doig (born in 1912 - died October 25, 1998) was a longtime Communist politician in Ontario, Canada. He served as leader of the Communist Party of Canada - Ontario in the 1981 provincial election, and was a prominent member of the federal party. Doig served on the Central Committee of the Communist Party of Canada in the early 1980s. An article in The Globe and Mail lists him as having been 68 years old in 1980.