# Opposition House Leader

The Opposition House Leader (French: Leader à la Chambre de l'opposition), officially known as leader of the Official Opposition in the House of Commons of Canada, is a member of the Official Opposition, not to be confused with the Leader of the Official Opposition, but is generally a senior member of the frontbench. The House Leader is responsible for questioning the Government House Leader on the forthcoming business of the House of Commons, negotiating with the Government House Leader and other parties' house leaders on the progress of business in the House, and managing the Official Opposition's business in the House of Commons.
The position of Opposition House Leader evolved in the 1950s as each Opposition party began to designate a particular MP to question the Government House Leader on upcoming House business. The title of Opposition House Leader became official in 1963, and in 1974, a special annual indemnity was attached to the position of House Leader in each of the opposition parties. The House Leader also coordinates the Official Opposition's floor strategy, often with the House leaders of smaller opposition parties. The position is particularly important when there is a minority government, or a government with a slim majority, which may be defeated by a vote of no confidence if all opposition parties work together.
Notable Opposition House leaders include Herb Gray of the Liberal Party (also a Government House Leader) and Erik Nielsen of the Progressive Conservative Party.
Notable House leaders of other recognized parties include New Democratic Party MPs Stanley Knowles, who was the House Leader for the NDP from 1962 to 1981, and Bill Blaikie, who held the same position from 1996 until 2003.

## List of Official Opposition House leaders

| Portrait | Name Electoral district (Birth–Death) | Term of office | Term of office | Party | Party | Leader of the opposition |
| Portrait | Name Electoral district (Birth–Death) | Term start | Term end | Party | Party | Leader of the opposition |
| | Lionel Chevrier MP for Laurier (1903–1987) | October 14, 1957 | February 5, 1963 | | Liberal | Louis St. Laurent |
| | Lionel Chevrier MP for Laurier (1903–1987) | October 14, 1957 | February 5, 1963 | | Liberal | Lester B. Pearson |
| | Gordon Churchill MP for Winnipeg South Centre (1898–1985) | May 16, 1963 | April 21, 1965 | | Progressive Conservative | John Diefenbaker |
| | Michael Starr MP for Ontario (1910–2000) | April 22, 1965 | April 23, 1968 | | Progressive Conservative | Robert Stanfield |
| | Ged Baldwin MP for Peace River (1907–1991) | July 27, 1968 | September 20, 1973 | | Progressive Conservative | Robert Stanfield |
| | Thomas Miller Bell MP for Saint John—Lancaster (1923–1996) | September 21, 1973 | May 9, 1974 | | Progressive Conservative | Robert Stanfield |
| | Ged Baldwin MP for Peace River (1907–1991) | August 14, 1974 | February 24, 1976 | | Progressive Conservative | Robert Stanfield |
| | Walter Baker MP for Grenville—Carleton (1930–1983) | February 25, 1976 | March 26, 1979 | | Progressive Conservative | Joe Clark |
| | Allan MacEachen MP for Cape Breton Highlands—Canso (1921–2017) | October 9, 1979 | December 14, 1979 | | Liberal | Pierre Trudeau |
| | Walter Baker MP for Nepean—Carleton (1930–1983) | April 14, 1980 | September 8, 1981 | | Progressive Conservative | Joe Clark |
| | Erik Nielsen MP for Yukon (1924–2008) | September 9, 1981 | February 8, 1983 | | Progressive Conservative | Joe Clark |
| | Doug Lewis MP for Simcoe North (born 1938) | February 10, 1983 | September 6, 1983 | | Progressive Conservative | Erik Nielsen |
| | Erik Nielsen MP for Yukon (1924–2008) | September 7, 1983 | April 5, 1984 | | Progressive Conservative | Brian Mulroney |
| | Ray Hnatyshyn MP for Saskatoon West (1934–2002) | April 6, 1984 | July 9, 1984 | | Progressive Conservative | Brian Mulroney |
| | Herb Gray MP for Windsor West (1931–2014) | September 18, 1984 | February 7, 1990 | | Liberal | John Turner |
| | Jean-Robert Gauthier MP for Ottawa—Vanier (1929–2009) | February 7, 1990 | January 29, 1991 | | Liberal | Herb Gray |
| | David Dingwall MP for Cape Breton—East Richmond (born 1952) | January 30, 1991 | May 8, 1993 | | Liberal | Jean Chrétien |
| | Michel Gauthier MP for Roberval—Lac-Saint-Jean (1950–2020) | November 10, 1993 | February 17, 1996 | | Bloc Québécois | Lucien Bouchard |
| | Michel Gauthier MP for Roberval—Lac-Saint-Jean (1950–2020) | November 10, 1993 | February 17, 1996 | | Bloc Québécois | Gilles Duceppe |
| | Gilles Duceppe MP for Laurier—Sainte-Marie (born 1947) | February 17, 1996 | March 15, 1997 | | Bloc Québécois | Michel Gauthier |
| | Suzanne Tremblay MP for Rimouski—Témiscouata (1937–2020) | March 17, 1997 | April 25, 1997 | | Bloc Québécois | Gilles Duceppe |
| | Randy White MP for Langley—Abbotsford (born 1948) | June 20, 1997 | January 30, 2000 | | Reform | Preston Manning |
| | Chuck Strahl MP for Fraser Valley (1957–2024) | January 31, 2000 | April 24, 2001 | | Reform | Preston Manning |
| | Chuck Strahl MP for Fraser Valley (1957–2024) | January 31, 2000 | April 24, 2001 | | Canadian Alliance | Preston Manning |
| | Chuck Strahl MP for Fraser Valley (1957–2024) | January 31, 2000 | April 24, 2001 | | Canadian Alliance | Deborah Grey |
| | John Reynolds MP for West Vancouver—Sunshine Coast (born 1942) | April 24, 2001 | December 17, 2001 | | Canadian Alliance | Stockwell Day |
| | Randy White MP for Langley—Abbotsford (born 1948) | December 18, 2001 | April 3, 2002 | | Canadian Alliance | John Reynolds |
| | John Reynolds MP for West Vancouver—Sunshine Coast (born 1942) | April 4, 2002 | December 22, 2003 | | Canadian Alliance | Stephen Harper |
| | Loyola Hearn MP for St. John's West (born 1943) | January 8, 2004 | March 21, 2004 | | Conservative | Grant Hill |
| | John Reynolds MP for West Vancouver—Sunshine Coast (born 1942) | March 22, 2004 | January 27, 2005 | | Conservative | Stephen Harper |
| | Jay Hill MP for Prince George—Peace River (born 1952) | January 28, 2005 | February 5, 2006 | | Conservative | Stephen Harper |
| | Ralph Goodale MP for Wascana (born 1949) | February 10, 2006 | September 6, 2010 | | Liberal | Bill Graham |
| | Ralph Goodale MP for Wascana (born 1949) | February 10, 2006 | September 6, 2010 | | Liberal | Stéphane Dion |
| | Ralph Goodale MP for Wascana (born 1949) | February 10, 2006 | September 6, 2010 | | Liberal | Michael Ignatieff |
| | David McGuinty MP for Ottawa South (born 1960) | September 7, 2010 | March 26, 2011 | | Liberal | Michael Ignatieff |
| | Tom Mulcair MP for Outremont (born 1954) | May 26, 2011 | October 12, 2011 | | New Democratic | Jack Layton |
| | Tom Mulcair MP for Outremont (born 1954) | May 26, 2011 | October 12, 2011 | | New Democratic | Nycole Turmel |
| | Joe Comartin MP for Windsor—Tecumseh (born 1947) | October 13, 2011 | April 19, 2012 | | New Democratic | Nycole Turmel |
| | Joe Comartin MP for Windsor—Tecumseh (born 1947) | October 13, 2011 | April 19, 2012 | | New Democratic | Tom Mulcair |
| | Nathan Cullen MP for Skeena—Bulkley Valley (born 1972) | April 20, 2012 | March 20, 2014 | | New Democratic | Tom Mulcair |
| | Peter Julian MP for Burnaby—New Westminster (born 1962) | March 24, 2014 | October 20, 2015 | | New Democratic | Tom Mulcair |
| | Andrew Scheer MP for Regina—Qu'Appelle (born 1979) | November 18, 2015 | September 13, 2016 | | Conservative | Rona Ambrose |
| | Candice Bergen MP for Portage—Lisgar (born 1964) | September 15, 2016 | September 2, 2020 | | Conservative | Rona Ambrose |
| | Candice Bergen MP for Portage—Lisgar (born 1964) | September 15, 2016 | September 2, 2020 | | Conservative | Andrew Scheer |
| | Candice Bergen MP for Portage—Lisgar (born 1964) | September 15, 2016 | September 2, 2020 | | Conservative | Erin O'Toole |
| | Gérard Deltell MP for Louis-Saint-Laurent (born 1964) | September 2, 2020 | February 4, 2022 | | Conservative | Erin O'Toole |
| | John Brassard MP for Barrie—Innisfil (born 1964) | February 5, 2022 | September 12, 2022 | | Conservative | Candice Bergen |
| | Andrew Scheer MP for Regina—Qu'Appelle (born 1979) | September 13, 2022 | Incumbent | | Conservative | Pierre Poilievre |

## List of House leaders of other recognized parties
### New Democratic Party

* Stanley Knowles 1962–1984
* Ian Deans 1984–1986 (acting 1981–1984)
* Nelson Riis 1986–1994
* Len Taylor 1994–1996
* Bill Blaikie 1996–2003
* Libby Davies 2003–2011
* Official Opposition 2011–2015
* Peter Julian 2015–2016
* Murray Rankin 2016–2018
* Ruth Ellen Brosseau 2018–2019
* Peter Julian 2019–present

### Reform Party

* Elwin Hermanson 1993–1995
* Raymond Speaker 1995–1997
* Official Opposition after 1997

### Progressive Conservative Party

* Government or Official Opposition before 1993
* None 1993–1997
* Peter MacKay 1997–2002
* Loyola Hearn 2002–2004

### Bloc Quebecois

* Official Opposition 1993–1997
* Michel Gauthier 1997–2007
* Pierre Paquette 2007–2011
* Louis Plamondon 2011–2013
* André Bellavance 2013–2014
* Jean-François Fortin 2014
* Louis Plamondon 2014–2015
* Luc Thériault 2015–2019
* Alain Therrien 2019–present

### Liberal Party

* Government or Official Opposition before 2011
* Marc Garneau 2011–2012
* Dominic LeBlanc 2012–2015