This is the electoral history of Tommy Douglas, the seventh premier of Saskatchewan from 1944 to 1961.
In addition to his role as premier, Douglas was a Co-operative Commonwealth Federation (CCF) member of the Legislative Assembly of Saskatchewan during the same time period for the constituency of Weyburn.
Having earlier served as a CCF member of the House of Commons of Canada for Weyburn from 1935 to 1944, Douglas re-entered federal politics in 1961 when he became the first leader of the newly-created New Democratic Party (NDP).
He served as an NDP member of the House of Commons of Canada from 1962 to 1968 and 1969 to 1979, and he stepped down from the role of party leader in 1971.
Douglas led the CCF in the 1948 election, and again won a majority, but with a much reduced seat count.
The Liberals made significant comeback under a new leader, Walter Tucker, but remained the Official Opposition.
The Liberals remained the Official Opposition, with a new leader, Alexander Hamilton McDonald.
In his fifth and last general election, Douglas again led the CCF to a majority government.
The Liberals remained the Official Opposition under a new leader, Ross Thatcher.
Douglas stood for election to the House of Common ten times, in two different provinces (Saskatchewan and British Columbia), and in five different ridings.
The by-election was triggered by the resignation of the incumbent NDP member, Erhart Regier, to allow Douglas, the party leader, to win a seat in the House of Commons.
By-election was triggered by the death of the incumbent NDP member, Colin Cameron, on July 28, 1968.
In 1961, Douglas was elected the first leader of the federal New Democratic Party (NDP).
Douglas was defeated in his own bid for a seat in Regina City, but won a by-election shortly afterwards in Burnaby—Coquitlam.
He won a by-election shortly afterward in the riding of Nanaimo—Cowichan—The Islands and re-entered Parliament.
In 1942, Douglas challenged George Hara Williams, the leader of the Saskatchewan Section of the CCF for the provincial leadership.
In 1943, Douglas in turn was challenged for the leadership of the Saskatchewan CCF, by John Brockelbank.
In 1961, Douglas contested the leadership of the federal New Democratic Party, the successor to the CCF.