| Dates of Office | Premier | Party | (Born - Died) |
| 2 Sep 1905 - 26 May 1910 | Alexander C. Rutherford | Lib | (b. 1858 - d. 1941) |
| 26 May 1910 - 30 Oct 1917 | Arthur L. Sifton | Lib | (b. 1858 - d. 1921) |
| 30 Oct 1917 - 13 Aug 1921 | Charles Stewart | Lib | (b. 1868 - d. 1946) |
| 13 Aug 1921 - 23 Nov 1925 | Herbert Greenfield | UFA | (b. 1865 - d. 1949) |
| 23 Nov 1925 - 10 Jul 1934 | John E. Brownlee | UFA | (b. 1884 - d. 1961) |
| 10 Jul 1934 - 3 Sep 1935 | Richard G. Reid | UFA | (b. 1879 - d. 1980) |
| 3 Sep 1935 - 23 May 1943 | William Aberhart | SC | (b. 1878 - d. 1943) |
| 31 May 1943 - 12 Dec 1968 | Ernest C. Manning | SC | (b. 1908 - d. 1996) |
| 12 Dec 1968 - 10 Sep 1971 | Harry E. Strom | SC | (b. 1914 - d. 1984) |
| 10 Sep 1971 - 1 Nov 1985 | The Honourable Peter Lougheed | PC | (b. 1928 - d. 2012) |
| 1 Nov 1985 - 14 Dec 1992 | Donald Getty | PC | (b. 1933 - d. 2016) |
| 14 Dec 1992 - 14 Dec 2006 | Ralph Klein | PC | (b. 1942) |
| 14 Dec 2006 - 7 Oct 2011 | Ed Stelmach | PC | (b. 1951) |
| 7 Oct 2011 - 23 Mar 2014 | Alison Redford | PC | (b. 1965) |
| 23 Mar 2014 - 15 Sep 2014 | Dave Hancock | PC | (b. 1955) |
| 15 Sep 2014 - 24 May 2015 | Jim Prentice | PC | (b. 1956) |
| 24 May 2015 - 30 Apr 2019 | Rachel Notley | NDP | (b. 1964) |
| 30 Apr 2019 - >11 Oct 2022 | Jason Kenney | UCP | (b. 1968) |
| 11 Oct 2022 - | Danielle Smith | UCP | (b. 1971) |
