Donald Matheson Sutherland, PC (December 3, 1879 – June 4, 1970) was a Canadian physician and politician.Sutherland ran for public office in the 1917 federal election held as a result of the Conscription Crisis of 1917 as a Laurier Liberal, but was defeated in the riding of Oxford North.By 1921, he had changed allegiances to the Conservatives and, in the 1925 general election, he won the seat of Oxford North and became a Tory Member of Parliament in the Canadian House of Commons.