List of premiers of Ontario by time in office explained

This is a list of premiers of Ontario in order of time served in office as premier of Ontario as of . The preceding premier always stays in office during an election campaign, and that time is included in the total. See also List of Ontario political parties by time in office.

List

Rank	Premier	Incumbency	Dates in office	Mandates	Party
1		^[1]	1872–1896	6
2		^[2]	1971–1985	4
3		^[3]	1949–1961	3
4		^[4]	1905–1914^[5]	4
5		^[6]	1961–1971	2
6		^[7]	2003–2013	3
7		^[8]	1934–1942	2
8		^[9]	1923–1930	3
9		^[10]	1995–2002	2
10	(incumbent)		2018–present	2
11		^[11]	2013–2018	1
12		^[12]	1899–1905	1
13		^[13]	1985–1990	1
14		^[14]	1943–1948	3
15		^[15]	1914–1919	0
16		^[16]	1990–1995	1
17		^[17]	1867–1871	1
18		^[18]	1919–1923	1
19		^[19]	1930–1934	0
20		^[20]	1896–1899	1
21		^[21]	2002–2003	0
22			1871–1872	1
23			1942–1943	0
24			1948-1949	0
25			1985	1
26			1943	0

Frank Miller's Progressive Conservative Party won a plurality of seats in the 1985 Ontario general election, but the resulting 33rd Parliament of Ontario passed a motion of no confidence against him less than two months into his mandate, replacing his government with David Peterson's Liberal Party. This table counts the 1985 election as a mandate for Miller.

Notes and References

1. Web site: Oliver Mowat, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
2. Web site: William Grenville Davis, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
3. Web site: Leslie Miscampbell Frost, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
4. Web site: James Pliny Whitney, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
5. died in office
6. Web site: John Parmenter Robarts, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
7. Web site: Dalton McGuinty, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
8. Web site: Mitchell Frederick Hepburn, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
9. Web site: George Howard Ferguson, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
10. Web site: Michael Harris, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
11. Web site: Kathleen O. Wynne, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
12. Web site: George William Ross, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
13. Web site: David Robert Peterson, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
14. Web site: George Alexander Drew, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
15. Web site: William Howard Hearst, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
16. Web site: Bob Keith Rae, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
17. Web site: John Sandfield Macdonald, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
18. Web site: Ernest Charles Drury, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
19. Web site: George Stewart Henry, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
20. Web site: Arthur Sturgis Hardy, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.
21. Web site: Ernie Eves, MPP. Legislative Assembly website. Legislative Assembly on Ontario. April 1, 2013.