# Ministry of Intergovernmental Affairs (Ontario)

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 serves 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.

## List of ministers

| Portrait | Name | Term of office | Term of office | Tenure | Political party (Ministry) | Note |
| Treasurer and Minister of Economics and Intergovernmental Affairs | Treasurer and Minister of Economics and Intergovernmental Affairs | Treasurer and Minister of Economics and Intergovernmental Affairs | Treasurer and Minister of Economics and Intergovernmental Affairs | Treasurer and Minister of Economics and Intergovernmental Affairs | PC (Davis) |
| | Charles MacNaughton | September 7, 1972 | March 15, 1973 | 130 days | |
| | John White | January 15, 1973 | June 18, 1975 | 2 years, 154 days | |
| | Darcy McKeough | June 18, 1975 | August 16, 1978 | 3 years, 59 days | |
| | Frank Miller | August 16, 1978 | August 30, 1979 | 1 year, 14 days | |
| Minister of Intergovernmental Affairs | Minister of Intergovernmental Affairs | Minister of Intergovernmental Affairs | Minister of Intergovernmental Affairs | Minister of Intergovernmental Affairs |
| | Thomas Leonard Wells | August 30, 1979 | February 8, 1985 | 6 years, 176 days | |
| | Frank Miller | February 8, 1985 | May 1, 1985 | 82 days | PC (Miller) | Concurrently Premier |
| | Reuben Baetz | May 17, 1985 | June 26, 1985 | 40 days | |
| | David Peterson | June 26, 1985 | October 1, 1990 | 5 years, 97 days | Liberal (Peterson) | Concurrently Premier |
| | Bob Rae | October 1, 1990 | February 1, 1993 | 4 years, 268 days | NDP (Rae) | Concurrently Premier |
| | Dianne Cunningham | June 26, 1995 | June 17, 1999 | 3 years, 356 days | PC (Harris) | |
| | Norm Sterling | June 17, 1999 | February 8, 2001 | 1 year, 236 days | |
| | Brenda Elliott | February 8, 2001 | April 14, 2002 | 1 year, 65 days | |
| | Ernie Eves | April 15, 2002 | October 22, 2003 | 1 year, 190 days | PC (Eves) | Concurrently Premier |
| | Dalton McGuinty | October 23, 2003 | July 29, 2005 | 1 year, 279 days | Liberal (McGuinty) | Concurrently Premier |
| | Marie Bountrogianni | July 29, 2005 | October 30, 2007 | 2 years, 93 days | |
| | Dalton McGuinty | October 30, 2007 | January 18, 2010 | 2 years, 80 days | Concurrently Premier |
| | Monique Smith | January 18, 2010 | October 20, 2011 | 1 year, 275 days | |
| | Dalton McGuinty | October 20, 2011 | February 11, 2013 | 1 year, 114 days | Concurrently Premier |
| | Laurel Broten | February 11, 2013 | July 2, 2013 | 141 days | Liberal (Wynne) | |
| | Kathleen Wynne | February 11, 2013 | June 29, 2018 | 5 years, 138 days | Concurrently Premier |
| | Doug Ford | June 29, 2018 | present | 6 years, 248 days | PC (Ford) | Concurrently Premier |
Note: James Allan is named "Minister of Economics and Federal and Provincial Relations" from January 27, 1961 to November 8, 1961.