List of prime ministers of Canada by constituency

The following list indicates ridings represented by Canadian prime ministers during their term(s) of office. Some prime ministers represented more than one constituency during their term(s), hence the tallied numbers exceed the number of prime ministers. Moreover, one prime minister—Sir Mackenzie Bowell—served his term while a member of the Senate, although he had previously been a member of the House of Commons from Ontario.

Three provinces—New Brunswick, Newfoundland and Labrador, and Prince Edward Island—have never been represented by a sitting prime minister. Mackenzie King briefly represented the Prince Edward Island riding of Prince, and Jean Chrétien even more briefly represented the New Brunswick riding of Beauséjour prior to their assuming the premiership, however. None of the three territories has been represented by a person who served as prime minister.

Two ridings have been represented by two sitting prime ministers. Both King and John Diefenbaker served Prince Albert; and both Wilfrid Laurier and Louis St. Laurent represented Quebec East. R. B. Bennett represented Calgary West during his premiership, as did Stephen Harper prior to his. Similarly, John A. Macdonald served his fourth term as MP for Carleton, a riding represented by Robert Borden as Opposition Leader in the 10th Parliament.

	Province	Prime Minister	Start	End	Notes
Prime minister outside Parliament		John A. Macdonald	1 July 1867	20 September 1867	Macdonald was appointed as the first Prime Minister on the date that Canada came into existence, but before the first Parliamentary election was held
Kingston	Ontario	John A. Macdonald	20 September 1867	5 November 1873
Lambton	Ontario	Alexander Mackenzie	7 November 1873	8 October 1878
Victoria	British Columbia	John A. Macdonald	17 October 1878	20 June 1882	Macdonald was initially elected as the MP for Marquette in the federal election; after his appointment as Prime Minister, he was required to vacate his seat and fight a ministerial by-election, in which he chose to stand in Victoria
Carleton	Ontario	John A. Macdonald	20 June 1882	21 February 1887
Kingston	Ontario	John A. Macdonald	22 February 1887	6 June 1891
Senator for Quebec		John Abbott	16 June 1891	24 November 1892	First person to serve as Prime Minister from the Senate
Antigonish	Nova Scotia	John Thompson	5 December 1892	12 December 1894
Senator for Ontario		Mackenzie Bowell	21 December 1894	27 April 1896
Cape Breton	Nova Scotia	Charles Tupper	1 May 1896	8 July 1896	Tupper was appointed as Prime Minister following the dissolution of Parliament, but before the federal election
Quebec East	Quebec	Wilfrid Laurier	11 July 1896	6 October 1911	Laurier won the riding of Saskatchewan (Provisional District) in the federal election but only held the seat for 18 days. On July 11, 1896, he vacated that seat, choosing instead to sit in the riding of Quebec East, which he had also contested and won in the federal election.
Halifax	Nova Scotia	Robert Borden	10 October 1911	16 December 1917
Kings	Nova Scotia	Robert Borden	17 December 1917	10 July 1920
Portage la Prairie	Manitoba	Arthur Meighan	10 July 1920	29 December 1921
York North	Ontario	William Mackenzie King	29 December 1921	28 October 1925
Prince Albert	Saskatchewan	William Mackenzie King	29 October 1925	28 June 1926
Portage la Prairie	Manitoba	Arthur Meighan	29 June 1926	25 September 1926
Prince Albert	Saskatchewan	William Mackenzie King	25 September 1926	6 August 1930
Calgary West	Alberta	R.B. Bennett	7 August 1930	22 October 1935
Prince Albert	Saskatchewan	William Mackenzie King	23 October 1935	10 June 1945
Prime minister outside Parliament		William Mackenzie King	11 June 1945	6 August 1945	Mackenzie King lost his own seat in the 1945 election and thus served as Prime Minister outside Parliament for two months; subsequently re-entered Parliament in a by-election in Glengarry, a safe seat vacated by the sitting MP to allow Mackenzie King to stand for election
Glengarry	Ontario	William Mackenzie King	6 August 1945	15 November 1948
Quebec East	Quebec	Louis St. Laurent	15 November 1948	20 June 1957
Prince Albert	Saskatchewan	John Diefenbaker	21 June 1957	21 April 1963
Algoma East	Ontario	Lester B. Pearson	22 April 1963	20 April 1968
Mount Royal	Quebec	Pierre Trudeau	20 April 1968	3 June 1979
Yellowhead	Alberta	Joe Clark	4 June 1979	2 March 1980
Mount Royal	Quebec	Pierre Trudeau	3 March 1980	30 June 1984
Prime minister outside Parliament		John Turner	30 June 1984	17 September 1984	Was not serving in either the Senate or the House of Commons when elected as Trudeau's successor, and decided not to try and contest a by-election during his time in office
Manicouagan	Quebec	Brian Mulroney	17 September 1984	21 November 1988
Charlevoix	Quebec	Brian Mulroney	21 November 1988	25 June 1993
Vancouver Centre	British Columbia	Kim Campbell	25 June 1993	3 November 1993
Saint-Maurice	Quebec	Jean Chrétien	4 November 1993	12 December 2003
LaSalle—Émard	Quebec	Paul Martin	12 December 2003	5 February 2006
Calgary Southwest	Alberta	Stephen Harper	6 February 2006	3 November 2015
Papineau	Quebec	Justin Trudeau	4 November 2015	Incumbent