List of premiers of Alberta by time in office
Rank ( by time in office ) Name Incumbency Dates in Power Mandates
1 Ernest Manning 25 years , 195 days 1943-05-31 to 1968-12-12 7
2 Peter Lougheed 14 years , 52 days 1971-09-10 to 1985-11-01 4
3 Ralph Klein 14 years , 0 days 1992-12-14 to 2006-12-14 4
4 John Edward Brownlee 8 years , 229 days 1925-11-23 to 1934-07-10 2
5 William Aberhart 7 years , 262 days 1935-09-03 to 1943-05-23 2
6 Arthur Sifton 7 years , 157 days 1910-05-26 to 1917-10-30 2
7 Don Getty 7 years , 42 days 1985-11-1 to 1992-12-13 2
8 Ed Stelmach 4 years , 297 days 2006-12-14 to 2011-10-07 1
9 Alexander Cameron Rutherford 4 years , 266 days 1905-09-02 to 1910-05-26 2
10 Herbert Greenfield 4 years , 102 days 1921-08-12 to 1925-11-23 1
11 Rachel Notley 3 years , 341 days 2015-05-24 to 2019-04-30 1
12 Charles Stewart 3 years , 287 days 1917-10-30 to 1921-08-13 0
13 Harry Strom 2 years , 272 days 1968-12-12 to 1971-09-10 0
14 Alison Redford 2 years , 167 days 2011-10-07 to 2014-03-23 1
15 Jason Kenney ( incumbent ) 1 year , 80 days 2019-04-30 to present 1
16 Richard Gavin Reid 1 year , 55 days 1934-07-10 to 1935-09-03 0
17 Jim Prentice 251 days 2014-09-15 to 2015-05-24 0
18 Dave Hancock 176 days 2014-03-23 to 2014-09-15 0
Wikipedia list article Premiers of Alberta by time served in office as of July 19 , 2020 . The Premier always stays in office during an election campaign . That time is included in the total , even if the Premier is defeated . Progressive Conservative Association of Alberta ( 7 ) Alberta Liberal Party ( 3 ) Alberta Social Credit Party ( 3 ) United Farmers of Alberta ( 3 ) Alberta New Democratic Party ( 1 ) United Conservative Party ( 1 )
Premiers of Alberta by time served in office as of . The Premier always stays in office during an election campaign. That time is included in the total, even if the Premier is defeated.