Sir Oliver Mowat, (July 22, 1820 – April 19, 1903) was a Canadian lawyer, politician, and Liberal Party leader.
He served for nearly 24 years as the third Premier of Ontario.
He was the eighth Lieutenant Governor of Ontario and one of the Fathers of Confederation.
He is best known for defending successfully the constitutional rights of the provinces in the face of the centralizing tendency of the national government as represented by his longtime conservative adversary, John A.
Macdonald.
This longevity and power was due to his political maneuvering, in terms of building a political base around Liberals, Catholics, trade unions, and anti-French-Canadian sentiment.Despite years of public service, Mowat never achieved the fame and public attention of his conservative rival Sir John A.
Macdonald who sought to outmaneuver him during their public life.
Their personal relationship and political competition has become one of the foremost examples of political rivalry in Canadian politics.