| Diagram[nb 1] | Parliament Election[1][2] Sessions[3] | Duration (from return of thewrits to dissolution)[4] | Government | Opposition |
|---|
Governing Party[2][5] • Prime Minister[2][6]—Ministry[2][5][7] | Seat counts as of election[2][8][9] | Official Opposition Party[10] • Leader of the Opposition[10] | Third Parties withofficial party status |
|---|
 | 1st Canadian Parliament Elected 1867 5 sessions | Sep 24, 1867 – Jul 8, 1872 | Conservative Party | 100 of 180 House seats[nb 2] | none | |
 | 2nd Canadian Parliament Elected 1872 2 sessions | Sep 3, 1872 – Jan 2, 1874 | Conservative Party(1872–1873) | 99 of 200 House seats[nb 3]
| Liberal Party | none |
| Liberal Party(1873–1874) | 95 of 200 House seats (minority)[nb 4] | Conservative Party |
 | 3rd Canadian Parliament Elected 1874 5 sessions | Feb 21, 1874 – Aug 16, 1878 | Liberal Party | 129 of 206 House seats | Conservative Party | none |
 | 4th Canadian Parliament Elected 1878 4 sessions | Nov 21, 1878 – May 18, 1882 | Conservative Party | 134 of 206 House seats | Liberal Party | none |
 | 5th Canadian Parliament Elected 1882 4 sessions | Aug 7, 1882 – Jan 15, 1887 | Conservative Party | 133 of 211 House seats | Liberal Party | none |
 | 6th Canadian Parliament Elected 1887 4 sessions | Apr 13, 1887 – Feb 3, 1891 | Conservative Party | 122 of 215 House seats | Liberal Party | none |
 | 7th Canadian Parliament Elected 1891 6 sessions | Apr 7, 1891 – Apr 24, 1896 | Conservative Party[nb 5] | 117 of 215 House seats | Liberal Party | none |
 | 8th Canadian Parliament Elected 1896 5 sessions | Jul 13, 1896 – Oct 9, 1900 | Liberal Party | 117 of 213 House seats | Conservative Party | none |
 | 9th Canadian Parliament Elected 1900 4 sessions | Dec 5, 1900 – Sep 29, 1904 | Liberal Party | 128 of 213 House seats | Conservative Party | none |
 | 10th Canadian Parliament Elected 1904 4 sessions | Dec 15, 1904 – Sep 17, 1908 | Liberal Party | 137 of 214 House seats | Conservative Party | none |
 | 11th Canadian Parliament Elected 1908 3 sessions | Dec 3, 1908 – Jul 29, 1911 | Liberal Party | 133 of 221 House seats | Conservative Party | none |
 | 12th Canadian Parliament Elected 1911 7 sessions | Oct 7, 1911 – Oct 6, 1917 | Conservative Party | 132 of 221 House seats | Liberal Party | none |
 | 13th Canadian Parliament Elected 1917 5 sessions | Mar 16, 1918 – Oct 4, 1921 | Unionist coalition(1918–1920) | 153 of 235 House seats (coalition)[nb 6] | Laurier Liberals | none |
| National Liberal and Conservative Party(1920–1921) |
 | 14th Canadian Parliament Elected 1921 4 sessions | Jan 15, 1922 – Sep 5, 1925 | Liberal Party | 118 of 235 House seats[nb 7] | Conservative Party[nb 8] | |
 | 15th Canadian Parliament Elected 1925 1 session | Dec 7, 1925 – Jul 2, 1926 | Liberal Party(1925–1926) | 100 of 245 House seats (minority)[nb 9] | Conservative Party(1925–1926) | |
| Conservative Party(1926) | 115 of 245 House seats (minority)[nb 10] | Liberal Party(1926) |
 | 16th Canadian Parliament Elected 1926 4 sessions | Nov 2, 1926 – May 30, 1930 | Liberal Party | 116 of 245 House seats (minority)[nb 11] | Conservative Party | none |
 | 17th Canadian Parliament Elected 1930 6 sessions | Aug 18, 1930 – Aug 14, 1935 | Conservative Party | 134 of 245 House seats | Liberal Party | none |
 | 18th Canadian Parliament Elected 1935 6 sessions | Nov 9, 1935 – Jan 25, 1940 | Liberal Party | 173 of 245 House seats | Conservative Party | |
 | 19th Canadian Parliament Elected 1940 6 sessions | Apr 17, 1940 – Apr 16, 1945 | Liberal Party | 179 of 245 House seats | Conservative Party[nb 12] | none |
 | 20th Canadian Parliament Elected 1945 5 sessions | Aug 9, 1945 – Apr 30, 1949 | Liberal Party | 118 of 245 House seats (minority) | Progressive Conservative Party | |
 | 21st Canadian Parliament Elected 1949 7 sessions | Aug 29, 1949 – Jun 13, 1953 | Liberal Party | 191 of 262 House seats | Progressive Conservative Party | |
 | 22nd Canadian Parliament Elected 1953 5 sessions | Oct 8, 1953 – Apr 12, 1957 | Liberal Party | 169 of 265 House seats | Progressive Conservative Party | |
 | 23rd Canadian Parliament Elected 1957 1 session | Aug 8, 1957 – Feb 1, 1958 | Progressive Conservative Party | 111 of 265 House seats (minority) | Liberal Party | |
 | 24th Canadian Parliament Elected 1958 5 sessions | Apr 30, 1958 – Apr 19, 1962 | Progressive Conservative Party | 208 of 265 House seats | Liberal Party | none |
 | 25th Canadian Parliament Elected 1962 1 session | Jul 18, 1962 – Feb 6, 1963 | Progressive Conservative Party | 116 of 265 House seats (minority) | Liberal Party | |
 | 26th Canadian Parliament Elected 1963 3 sessions | May 8, 1963 – Sep 8, 1965 | Liberal Party | 128 of 265 House seats (minority)[nb 13] | Progressive Conservative Party | |
 | 27th Canadian Parliament Elected 1965 2 sessions | Dec 9, 1965 – Apr 23, 1968 | Liberal Party | 131 of 265 House seats (minority)[nb 14] | Progressive Conservative Party | |
 | 28th Canadian Parliament Elected 1968 4 sessions | Jul 25, 1968 – Sep 1, 1972 | Liberal Party | 154 of 264 House seats | Progressive Conservative Party | |
 | 29th Canadian Parliament Elected 1972 2 sessions | Nov 20, 1972 – May 9, 1974 | Liberal Party | 109 of 264 House seats (minority) | Progressive Conservative Party | |
 | 30th Canadian Parliament Elected 1974 4 sessions | Jul 31, 1974 – Mar 26, 1979 | Liberal Party | 141 of 264 House seats
76 of 102Senate seats | Progressive Conservative Party | |
 | 31st Canadian Parliament Elected 1979 1 session | Jun 11, 1979 – Dec 14, 1979 | Progressive Conservative Party | 136 of 282 House seats (minority)
18 of 104Senate seats | Liberal Party | |
 | 32nd Canadian Parliament Elected 1980 2 sessions | Mar 10, 1980 – Jul 9, 1984 | Liberal Party | 147 of 282 House seats
71 of 104Senate seats | Progressive Conservative Party | |
 | 33rd Canadian Parliament Elected 1984 2 sessions | Sep 24, 1984 – Oct 1, 1988 | Progressive Conservative Party | 211 of 282 House seats
23 of 104Senate seats | Liberal Party | |
 | 34th Canadian Parliament Elected 1988 3 sessions | Dec 12, 1988 – Sep 8, 1993 | Progressive Conservative Party | 169 of 295 House seats
36 of 104Senate seats[nb 15] | Liberal Party | |
 | 35th Canadian Parliament Elected 1993 2 sessions | Nov 15, 1993 – Apr 27, 1997 | Liberal Party | 177 of 295 House seats
41 of 104Senate seats | Bloc Québécois | |
 | 36th Canadian Parliament Elected 1997 2 sessions | Jun 23, 1997 – Oct 22, 2000 | Liberal Party | 155 of 301House seats
51 of 104Senate seats | Reform Party(1997–2000) | |
| Canadian Alliance(2000) |
 | 37th Canadian Parliament Elected 2000 3 sessions | Dec 18, 2000 – May 23, 2004 | Liberal Party | 172 of 301House seats
55 of 105Senate seats | Canadian Alliance(2000–2004) | |
| Conservative Party(2004) | |
 | 38th Canadian Parliament Elected 2004 1 session | Aug 23, 2004 – Nov 29, 2005 | Liberal Party | 135 of 308House seats (minority)[nb 16]
64 of 105Senate seats | Conservative Party | |
 | 39th Canadian Parliament Elected 2006 2 sessions | Feb 13, 2006 – Sep 7, 2008 | Conservative Party | 124 of 308House seats (minority)
23 of 105Senate seats | Liberal Party | |
 | 40th Canadian Parliament Elected 2008 3 sessions | Nov 4, 2008 – Mar 26, 2011 | Conservative Party | 143 of 308House seats (minority)
21 of 105Senate seats | Liberal Party | |
 | 41st Canadian Parliament Elected 2011 2 sessions | May 23, 2011 – Aug 2, 2015 | Conservative Party | 166 of 308House seats
52 of 105Senate seats | New Democratic Party | |
 | 42nd Canadian Parliament Elected 2015 1 session | Dec 3, 2015 – Sep 11, 2019 | Liberal Party | 184 of 338House seats
0 of 105Senate seats | Conservative Party | |
 | 43rd Canadian Parliament Elected 2019 2 sessions | Dec 5, 2019 – Aug 15, 2021 | Liberal Party | 157 of 338House seats (minority)
0 of 105Senate seats | Conservative Party | |
 | 44th Canadian Parliament Elected 2021 1 session | Nov 22, 2021 – Mar 23, 2025 | Liberal Party | 160 of 338House seats (minority)[nb 17]
0 of 105Senate seats | Conservative Party | |
 | 45th Canadian Parliament Elected 2025 1 session | May 26, 2025 – present | Liberal Party | 169 of 343House seats (minority)
0 of 105Senate seats | Conservative Party | |