James Maxwell Cooper (June 17, 1900 – November 29, 1979) was a Canadian politician, who represented the electoral district of Sudbury in the Legislative Assembly of Ontario from 1937 to 1943. He was a member of the Ontario Liberal Party. He was born in Sudbury. While in the Legislature, he was one of six Northern Ontario MPPs who absented themselves from a vote to censure the federal government for "not prosecuting the war with sufficient diligence". Following his time in politics, he became an investor in the city's media; with coinvestors George Miller and Bill Plaunt, he purchased the Sudbury Star and radio station CKSO in 1950, and launched CKSO-TV in 1953. He died at a nursing home in 1979.