Sterling Rufus Lyon was a Canadian lawyer, cabinet minister, and the 17th premier of Manitoba from 1977 to 1981. His government introduced several fiscally-conservative measures, and was sometimes seen as a local version of the government of Margaret Thatcher in the United Kingdom. He also successfully fought for the inclusion of the notwithstanding clause in the Canadian Charter of Rights and Freedoms.

The premier of Manitoba is the first minister for the Canadian province of Manitoba—as well as the de facto President of the province's Executive Council.