The Top 5 Longest Serving Canadian Prime Ministers

  Canadian Prime Minister
(Political Party)
Time Served in Office Years in Power Mandates
1 William Lyon Mackenzie King
(Liberal Party)
21 years, 154 days 1921–1926,
1926–1930,
1935–1948
6
2 Sir John A. Macdonald
(Conservative Party)
18 years, 359 days 1867–1873,
1878–1891
6
3 Pierre Elliot Trudeau
(Liberal Party)
15 years, 164 days 1968–1979,
1980–1984
4
4 Sir Wilfrid Laurier
(Liberal Party)
15 years, 86 days 1896–1911 4
5 Jean Chrétien
(Liberal Party)
10 years, 38 days 1993–2003 3
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Sources:  Top 5 of Anything.com research 2015.

List Notes: Data is the top 5 longest serving Canadian Prime ministers ranked according to time served in office.
Longest Serving Canadian Prime Ministers

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