The Ministry of Intergovernmental Affairs is responsible for intergovernmental affairs between the Canadian province of Ontario and the other provinces and territories and the Canadian government.
The ministry's goal is to strengthen national unity and Ontario's role within Canada.
The current minister is Doug Ford, who also served as the premier of Ontario; the position is often held concurrently by the premier.
The Provincial Secretary and Registrar of Ontario, Minister of Economics and Provincial Relations and Ministry of Federal-Provincial Relations were the positions formerly responsible for intergovernmental affairs.
Note: James Allan is named "Minister of Economics and Federal and Provincial Relations" from January 27, 1961 to November 8, 1961.