Leader of the Official Opposition (Ontario)
List of Leaders of the Official Opposition in Ontario
¹The Liberals were recognized as the Official Opposition following the 1923 election by the governing Conservatives, despite the fact that the United Farmers of Ontario had more seats.

Leader of the Official Opposition (Ontario)

Section Title: List of Leaders of the Official Opposition in Ontario
Table Section Text: ¹The Liberals were recognized as the Official Opposition following the 1923 election by the governing Conservatives, despite the fact that the United Farmers of Ontario had more seats.

#	Leader	Party	Took office	Left office

1.	Edward Blake	Liberal	December 1869	December 1871

2.	Matthew Crooks Cameron	Conservative	December 1871	1878

3.	William Ralph Meredith	October 1878	October 1894

4.	George Marter	October 1894	April 1896

5.	James Whitney	April 1896	January 1905

6.	George William Ross	Liberal	February 1905	January 1907

7.	George Graham	January 1907	August 1907

8.	Alexander Grant MacKay	August 1907	1911

9.	Newton Wesley Rowell	December 1911	1917

10.	William Proudfoot	February 1918	October 1919

11.	Hartley Dewart	1919	October 1921

12.	Wellington Hay	March 1922	June 1923

13.	William Sinclair 1 2	August 1923	June 1934

14.	George Henry	Conservative	July 1935	December 1938

15.	George Drew	Conservative/Progressive Conservative	1939	1943

16.	Ted Jolliffe	Co-operative Commonwealth Federation	August 1943	June 1945

17.	Farquhar Oliver	Liberal	July 1945	June 1948

Ted Jolliffe (second time)	Co-operative Commonwealth Federation	July 1948	November 1951

Farquhar Oliver3 (second time)	Liberal	1951	April 1958

18.	John Wintermeyer	April 1958	August 1963

Farquhar Oliver 4 (third time)	October 1963	September 1964

19.	Andy Thompson	September 1964	November 1966

20.	Robert Nixon	February 1967	September 18, 1975

21.	Stephen Lewis	New Democratic	October 28, 1975	April 29, 1977

22.	Stuart Smith	Liberal	June 1977	September 1981

Robert Nixon5 (second time)	January 25, 1982	February 21, 1982

23.	David Peterson	February 1982	June 1985

24.	Frank Miller	Progressive Conservative	1985	1985

25.	Larry Grossman	1985	1987

26.	Bob Rae	New Democratic	1987	1990

Robert Nixon 6 (third time)	Liberal	November 20, 1990	July 31, 1991

27.	Murray Elston 7	1991	1991

28.	Jim Bradley 8	1991	1992

29.	Lyn McLeod	1992	1996

30.	Dalton McGuinty	1996	2003

31.	Ernie Eves	Progressive Conservative	2003	2004

32.	Bob Runciman 9	2004	2005

33.	John Tory	2005	2007

Bob Runciman10 (second time)	2007	2009

34.	Tim Hudak	2009	2014

35.	Jim Wilson11	2014	2015

36.	Patrick Brown	2015	2018

37.	Vic Fedeli12	2018	2018

38.	Andrea Horwath	New Democratic	2018

Sentence(s)

The current Leader of the Opposition is Andrea Horwath of the New Democratic Party, because the NDP won the second largest number of seats as a result of the 2018 election.
In 2018, Andrea Horwath became the current Leader of the Opposition and leader of the Ontario New Democratic Party.
The current Leader of the Opposition is Andrea Horwath, leader of the Ontario New Democratic Party as a result of the 2018 election.

final_sentence: The current Leader of the Opposition is Andrea Horwath of the New Democratic Party, because the NDP won the second largest number of seats as a result of the 2018 election.
final_sentence: In 2018, Andrea Horwath became the current Leader of the Opposition and leader of the Ontario New Democratic Party.
final_sentence: The current Leader of the Opposition is Andrea Horwath, leader of the Ontario New Democratic Party as a result of the 2018 election.