John Graham (March 9, 1864[1] – November 7, 1951[2]) was a politician in Manitoba, Canada.

He served in the Legislative Assembly of Manitoba from 1914 to 1920, as a member of the Liberal Party.

For many years, he was the Manitoba vice-president on the Board of the Clydesdale Horse Association.

The Conservatives won this election, and Graham sat as a member of the opposition.

In early 1915, the Conservative administration of Rodmond Roblin was forced from office amid a corruption scandal.