The 4th Legislative Assembly of Saskatchewan was elected in the Saskatchewan general election held in June 1917. The assembly sat from November 13, 1917, to May 16, 1921.[1] The Liberal Party led by William Melville Martin formed the government.[2] The Conservative Party of Saskatchewan led by Donald Maclean formed the official opposition. Wellington Willoughby had resigned from the assembly shortly after the election.[3]
Robert Menzies Mitchell served as speaker for the assembly until May 1919. George Adam Scott succeeded Mitchell as speaker.[4]