List of Premiers of Ontario - Premiers of Ontario Since 1867

Premiers of Ontario Since 1867

Progressive Conservative Party of Ontario United Farmers of Ontario Ontario Liberal Party Ontario New Democratic Party

No. Portrait Name

 Term of office Electoral mandates (Assembly) Political party
For pre-confederation premiers, see List of Joint Premiers of the Province of Canada.
1 John Sandfield Macdonald
1867
1871
  • Inter-election appt. (none)
  • 1867 election (1st Assembly)
 Liberal-Conservative Party
2 Edward Blake
1871
1872
  • 1871 election (2nd Assembly)
 Liberal Party
3 Sir Oliver Mowat
1872
1896
  • Inter-election appt. (2nd Assembly)
  • 1875 election (3rd Assembly)
  • 1879 election (4th Assembly)
  • 1883 election (5th Assembly)
  • 1886 election (6th Assembly)
  • 1890 election (7th Assembly)
  • 1894 election (8th Assembly)
 Liberal Party
4 Arthur Sturgis Hardy
1896
1899
  • Inter-election appt. (8th Assembly)
  • 1898 election (9th Assembly)
 Liberal Party
5 Sir George William Ross
1899
1905
  • Inter-election appt. (9th Assembly)
  • 1902 election (10th Assembly)
 Liberal Party
6 Sir James Whitney
1905
1914
  • 1905 election (11th Assembly)
  • 1908 election (12th Assembly)
  • 1911 election (13th Assembly)
  • 1914 election (14th Assembly)
 Conservative Party
7 Sir William Hearst
1914
1919
  • Inter-election appt. (14th Assembly)
 Conservative Party
8 Ernest Drury
1919
1923
  • 1919 election (15th Assembly)
 United Farmers
9 George Howard Ferguson
1923
1930
  • 1923 election (16th Assembly)
  • 1926 election (17th Assembly)
  • 1929 election (18th Assembly)
 Conservative Party
10 George Stewart Henry
1930
1934
  • Inter-election appt. (18th Assembly)
 Conservative Party
11 Mitchell Hepburn


MPP for Elgin
1934
1942
  • 1934 election (19th Assembly)
  • 1937 election (20th Assembly)
 Liberal Party
12 Gordon Daniel Conant
1942
1943
  • Inter-election appt. (20th Assembly)
 Liberal Party
13 Harry Nixon
1943
1943
  • Inter-election appt. (20th Assembly)
 Liberal Party
14 George A. Drew
1943
1948
  • 1943 election (21st Assembly)
  • 1945 election (22nd Assembly)
  • 1948 election (23rd Assembly)
 Progressive Conservative Party
15 Thomas Laird Kennedy
1948
1949
  • Inter-election appt. (23rd Assembly)
 Progressive Conservative Party
16 Leslie Frost
1949
1961
  • Inter-election appt. (23rd Assembly)
  • 1951 election (24th Assembly)
  • 1955 election (25th Assembly)
  • 1959 election (26th Assembly)
 Progressive Conservative Party
17 John Robarts
1961
1971
  • Inter-election appt. (26th Assembly)
  • 1963 election (27th Assembly)
  • 1967 election (28th Assembly)
 Progressive Conservative Party
18 Bill Davis
1971
1985
  • Inter-election appt. (28th Assembly)
  • 1971 election (29th Assembly)
  • 1975 election (30th Assembly)
  • 1977 election (31st Assembly)
  • 1981 election (32nd Assembly)
 Progressive Conservative Party
19 Frank Miller
1985
1985
  • Inter-election appt. (32nd Assembly)
  • 1985 election (33rd Assembly)
 Progressive Conservative Party
20 David Peterson
1985
1990
  • Inter-election appt. (33rd Assembly)
  • 1987 election (34th Assembly)
 Liberal Party
21 Bob Rae
1990
1995
  • 1990 election (35th Assembly)
 New Democratic Party
22 Mike Harris
1995
2002
  • 1995 election (36th Assembly)
  • 1999 election (37th Assembly)
 Progressive Conservative Party
23 Ernie Eves
2002
2003
  • Inter-election appt. (37th Assembly)
 Progressive Conservative Party
24 Dalton McGuinty
2003
Incumbent
  • 2003 election (38th Assembly)
  • 2007 election (39th Assembly)
  • 2011 election (40th Assembly)
 Liberal Party
Co. Coalition government
Min. Minority government
LS Party won the election, but premier lost own seat

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