The Saskatchewan Act is an Act of the Canadian Parliament which established the new province of Saskatchewan, effective September 1, 1905. Its long title is An Act to establish and provide for the government of the Province of Saskatchewan. The Act received royal assent on July 20, 1905. The Saskatchewan Act is part of the Constitution of Canada.
From 1870 to 1905, the region which is now Saskatchewan was part of the North-West Territories, established by the Parliament of Canada. As the population of the North-West Territories increased, its government evolved from an appointed lieutenant governor in 1876, to responsible government in 1897, to near full provincial powers, with the exception of direct taxation by 1901. However, with the federal government failing to cover the full expenses of the Territories, Premier Frederick Haultain requested provincial status for a large swathe of the Territories.
The initial proposal by the Conservative Haultain to Liberal Prime Minister Wilfrid Laurier in 1900 was seconded by Liberal James Ross, and was taken under consideration by Clifford Sifton, Minister of the Interior. Haultain desired that the entire area between Manitoba and British Columbia be incorporated as a single province, due to the region's shared history and economy. Others supported splitting the area into two or more separate provinces based on the existing provisional districts, for fear a single province would be unwieldy, and that it might come to dominate federal politics. The Laurier government postponed any decision until after the 1904 election, during which Haultain actively campaigned for the Conservatives. The Conservatives lost to Laurier's Liberals, and following the election the Liberals decided to create two provinces, Saskatchewan and Alberta.