James Graham Harvey (June 3, 1869—November 12, 1950) was a politician in Manitoba, Canada. He served in the Legislative Assembly of Manitoba from 1910 to 1914, as a member of the Conservative Party. Harvey was born at Fallbrook in Lanark County, Ontario, the son of James Graham Harvey, later alderman and controller for the city of Winnipeg, and Catherine Ferguson. He came to Winnipeg with his family in 1875 and was educated at public schools there and at Manitoba College, receiving a law degree. He was called to the Manitoba bar and began practising law in Winnipeg in 1890. Harvey moved to Dauphin in 1896. He served three years as mayor of Dauphin and also was president of the Dauphin Board of Trade. In religion, Harvey was a Presbyterian. He married Ida S. Mills in 1897.