Leaders of Major Canadian Political Parties
| PC | Reform/Canadian Alliance | Conservative | Liberal | NDP | BQ | People's Party | |||||||
| Leader | Term | Leader | Term | Leader | Term | Leader | Term | Leader | Term | Leader | Term | Leader | Term |
| Sir John A. Macdonald | 1854–91 | Preston Manning | 1987–2000 | Stephen Harper | 2004–15 | George Brown | 1867 | Tommy Douglas | 1961–71 | Lucien Bouchard | 1991–95 | Maxime Bernier | 2018- |
| Sir J.J.C. Abbott | 1891–92 | Stockwell Day | 2000–01 | Rona Ambrose (Interim) | 2015–17 | Edward Blake | 1869–70 | David Lewis | 1971–75 | Michel Gauthier | 1996–97 | ||
| Sir John Thompson | 1892–94 | Stephen Harper | 2001–03 | Alexander Mackenzie | 1873–80 | Ed Broadbent | 1975–89 | Gilles Duceppe | 1997–2011 | ||||
| Sir Mackenzie Bowell | 1894–96 | Edward Blake | 1880–87 | Audrey McLaughlin | 1989–95 | Vivian Barbot (Interim) | 2011 | ||||||
| Sir Charles Tupper | 1896–1901 | Sir Wilfrid Laurier | 1887–1919 | Alexa McDonough | 1995–2003 | Daniel Paille | 2011–13 | ||||||
| Sir Robert Borden | 1901–20 | Daniel D. McKenzie | 1919 | Jack Layton | 2003–11 | Mario Beaulieu | 2014–15 | ||||||
| Arthur Meighen | 1920–26 | William Lyon Mackenzie King | 1919–48 | Thomas Mulcair | 2012–17 | Gilles Duceppe | 2015 | ||||||
| Hugh Guthrie | 1926–27 | Louis St. Laurent | 1948–58 | Rheal Fortin (Interim) | 2015– | ||||||||
| R.B. Bennett | 1927–38 | Lester B. Pearson | 1958–68 | ||||||||||
| R.J. Manion | 1938–40 | Pierre E. Trudeau | 1968–84 | ||||||||||
| R.B. Hanson | 1940–41 | John Turner | 1984–90 | ||||||||||
| Arthur Meighen | 1941–42 | Jean Chrétien | 1990–2003 | ||||||||||
| John Bracken | 1942–48 | Paul Martin | 2003–06 | ||||||||||
| George Drew | 1948–56 | Bill Graham | 2006 | ||||||||||
| John Diefenbaker | 1956–67 | Stéphane Dion | 2006–09 | ||||||||||
| Robert. L. Stanfield | 1967–76 | Michael Ignatieff | 2009–11 | ||||||||||
| Joe Clark | 1976–83 | Bob Rae | 2011–13 | ||||||||||
| Erik Nielsen | 1983 | Justin Trudeau | 2013– | ||||||||||
| Brian Mulroney | 1983–93 | ||||||||||||
| Kim Campbell | 1993 | ||||||||||||
| Jean Charest | 1993–98 | ||||||||||||
| Joe Clark | 1998–2003 | ||||||||||||
| Peter MacKay | 2003 | ||||||||||||
