List of premiers of Alberta by time in office

Last updated

Premiers of Alberta by time served in office as of March 28, 2025. The premier always stays in office during an election campaign. That time is included in the total, even if the premier is defeated.

RankNameIncumbencyTerms of office [a] MandatesParty
1 Ernest Manning 25 years, 195 daysMay 31, 1943December 12, 19687  Social Credit
2 Peter Lougheed 14 years, 52 daysSeptember 10, 1971November 1, 19854  Progressive Conservative
3 Ralph Klein 14 years, 0 daysDecember 14, 1992December 14, 20064  Progressive Conservative
4 John Edward Brownlee 8 years, 229 daysNovember 23, 1925July 10, 19342  United Farmers
5 William Aberhart 7 years, 262 daysSeptember 3, 1935May 23, 19432  Social Credit
6 Arthur Sifton 7 years, 157 daysMay 26, 1910October 30, 19172  Liberal
7 Don Getty 7 years, 42 daysNovember 1, 1985December 13, 19922  Progressive Conservative
8 Ed Stelmach 4 years, 297 daysDecember 14, 2006October 7, 20111  Progressive Conservative
9 Alexander Cameron Rutherford 4 years, 266 daysSeptember 2, 1905May 26, 19102  Liberal
10 Herbert Greenfield 4 years, 102 daysAugust 13, 1921November 23, 19251 [b]   United Farmers
11 Rachel Notley 3 years, 341 daysMay 24, 2015April 30, 20191  New Democratic
12 Charles Stewart 3 years, 287 daysOctober 30, 1917August 13, 19210  Liberal
13 Jason Kenney 3 years, 164 daysApril 30, 2019October 11, 20221  United Conservative
14 Harry Strom 2 years, 272 daysDecember 12, 1968September 10, 19710  Social Credit
15 Danielle Smith (incumbent)2 years, 168 daysOctober 11, 2022Present1  United Conservative
16 Alison Redford 2 years, 167 daysOctober 7, 2011March 23, 20141  Progressive Conservative
17 Richard Gavin Reid 1 year, 55 daysJuly 10, 1934September 3, 19350  United Farmers
18 Jim Prentice 251 daysSeptember 15, 2014May 24, 20150  Progressive Conservative
19 Dave Hancock 176 daysMarch 23, 2014September 15, 20140  Progressive Conservative

Notes

  1. There was no premier of Alberta from May 23 until May 31, 1943, due to the death of Premier Aberhart.
  2. The United Farmers of Alberta won the 1921 election without a leader. Greenfield was made leader immediately afterward, and this election is counted as a win for Greenfield.