How Many Prime Ministers Has Canada Had?
Canada has had 24 prime ministers since Confederation in 1867 — 23 men and one woman. But those 24 people have been called on to form 30 separate governments, because three of them returned for non-consecutive spells. Mark Carney, sworn in on 14 March 2025, is the 24th.
Why 24 people but 30 governments
Canada counts its prime ministers by the person, not the term. So when a leader loses power and later wins it back, they are not given a new number — they are still the same PM. Four men did exactly that: John A. Macdonald, Arthur Meighen, William Lyon Mackenzie King and Pierre Trudeau all returned after a gap.
Mackenzie King is the extreme case: three separate spells between 1921 and 1948, adding up to about 21 years and the longest premiership in the Commonwealth. Count the people and you get 24. Count the governments they formed and you get 30. Both numbers are right; they answer slightly different questions.
The dynasties and the records
Two of the 24 share a surname: Pierre Trudeau, the 15th prime minister, and his son Justin, the 23rd — the only father and son to both hold the office. At the other end of the scale sits Charles Tupper, PM for about 69 days in 1896, the shortest tenure of all.
Only one woman has held the job: Kim Campbell, for roughly four months in 1993, before an election cut her Progressive Conservatives from a majority to just two seats — one of the most spectacular collapses in democratic history. Only two PMs died in office, both of natural causes: Macdonald in 1891 and Thompson, who collapsed at Windsor Castle in 1894.
The full list, in order
All 24 from John A. Macdonald to Mark Carney. Canada counts by people, not terms — so Macdonald, Mackenzie King and Pierre Trudeau each appear once here despite serving in two or three separate stretches.
The Carney exception
The 24th prime minister broke a rule that had held for more than 150 years. Every previous Canadian PM had won an elected seat before reaching the top; Mark Carney had not. A former governor of both the Bank of Canada and the Bank of England, he won the Liberal leadership in March 2025 after Justin Trudeau\u2019s resignation, and only afterwards entered Parliament.
He then assembled an unusual majority: returned as a minority in the 2025 election, his government reached a Commons majority in April 2026 through by-elections and floor-crossings rather than a single decisive vote — a reminder that in a Westminster system, power is about the arithmetic of the chamber, not just the ballot box.
How much power is in the job?
With a majority, a Canadian prime minister faces unusually few brakes — tight party discipline and an appointed Senate. The whole game is securing the confidence of the Commons.
Think you know them? Prove it
A quick quiz. The counting questions catch most people.
- Library of Parliament / Parliament of Canada — prime ministers and the 30 Canadian ministries
- Office of the Prime Minister (pm.gc.ca) — Mark Carney, 24th prime minister
- CBC News (April 2026) — Carney reaches a Commons majority
- Wikipedia — List of prime ministers of Canada (numbering, dates and parties)
- Natural Earth public-domain country data (via world-atlas), used on the Leaders of the World map
Twenty-four people, thirty governments, two Trudeaus and one banker who had never run for anything — Canada\u2019s top job is tidier to name than it is to count.