Louis Riel declares a provisional government in Saskatchewan, beginning the North-West Rebellion.

The North-West Rebellion of 1885 (French: Rbellion du Nord-Ouest), also known as the North-West Resistance, was a rebellion by the Mtis people under Louis Riel and an associated uprising by First Nations Cree and Assiniboine of the District of Saskatchewan against the Canadian government. Many Mtis felt that Canada was not protecting their rights, their land, and their survival as a distinct people.

Riel had been invited to lead the movement of protest; he turned it into a military action with a heavily religious tone. That alienated Catholic clergy, whites, most Indigenous tribes, and some Mtis, but he had the allegiance of 200 armed Mtis, a smaller number of other Indigenous warriors, and at least one white man at Batoche in May 1885, who confronted 900 Canadian militia and some armed local residents. About 91 people would die in the fighting that occurred that spring before the rebellion's collapse.Despite some notable early victories at Duck Lake, Fish Creek, and Cut Knife, the rebellion was quashed when overwhelming government forces and a critical shortage of supplies brought about the Mtis' defeat in the four-day Battle of Batoche. The remaining Aboriginal allies scattered. Several chiefs were captured, and some served prison time. Eight men were hanged in Canada's largest mass hanging, for murders performed outside the military conflict.

Riel was captured, put on trial, and convicted of treason. Despite many pleas across Canada for clemency, he was hanged. Riel became a heroic martyr to Francophone Canada. That was one cause for the rise of ethnic tensions into a deep division, whose repercussions continue to be felt. The rebellion's suppression contributed to the present reality of the Prairie Provinces being controlled by English speakers, who allowed only a very limited francophone presence, and helped cause the alienation of French Canadians, who were embittered by the repression of their countrymen. The key role that the Canadian Pacific Railway played in transporting troops caused support by the Conservative government to increase, and Parliament authorized funds to complete the country's first transcontinental railway.

Louis Riel (; French: [lwi ʁjɛl]; 22 October 1844 – 16 November 1885) was a Canadian politician, a founder of the province of Manitoba, and a political leader of the Métis people. He led two resistance movements against the Government of Canada and its first prime minister, John A. Macdonald. Riel sought to defend Métis rights and identity as the Northwest Territories came progressively under the Canadian sphere of influence.

The first resistance movement led by Riel was the Red River Resistance of 1869–1870. The provisional government established by Riel ultimately negotiated the terms under which the new province of Manitoba entered the Canadian Confederation. However, while carrying out the resistance, Riel had a Canadian nationalist, Thomas Scott, executed. Riel soon fled to the United States to escape prosecution. He was elected three times as member of the House of Commons, but, fearing for his life, he could never take his seat. During these years in exile he came to believe that he was a divinely chosen leader and prophet. He married in 1881 while in exile in the Montana Territory.

In 1884 Riel was called upon by the Métis leaders in Saskatchewan to help resolve longstanding grievances with the Canadian government, which led to an armed conflict with government forces: the North-West Rebellion of 1885. Defeated at the Battle of Batoche, Riel was imprisoned in Regina where he was convicted at trial of high treason. Despite protests, popular appeals and the jury's call for clemency, Riel was executed by hanging. Riel was seen as a heroic victim by French Canadians; his execution had a lasting negative impact on Canada, polarizing the new nation along ethno-religious lines. The Métis were marginalized in the Prairie provinces by the increasingly English-dominated majority. An even more important long-term impact was the bitter alienation Francophones across Canada felt, and anger against the repression by their countrymen.Riel's historical reputation has long been polarized between portrayals as a dangerous religious fanatic and rebel opposed to the Canadian nation, and, by contrast, as a charismatic leader intent on defending his Métis people from the unfair encroachments by the federal government eager to give Orangemen-dominated Ontario settlers priority access to land. Arguably, Riel has received more formal organizational and academic scrutiny than any other figure in Canadian history. The trial and conviction of Louis Riel has been the subject of historical comment and criticism for over one hundred years.