Who was Canada’s greatest Prime Minister—and who fell short? This tier list explores the highs and lows of Canadian leadership through history.

Canada's 23rd Prime Minister from 2015 to 2025 who won 3 consecutive elections. Canada’s 23rd Prime Minister from 2015 to 2025 having won 3 consecutive elections as head of the Liberal Party.

By convention, the leader of the party winning the most seats in Canada's 343-seat House of Commons becomes prime minister. The country had been set to hold its next general election on Oct. 20.