# List of Alberta by-elections

The list of Alberta by-elections includes every by-election held in the Canadian province of Alberta. By-elections occur whenever there is a vacancy in the Legislative Assembly, although an imminent general election may allow the vacancy to remain until the dissolution of parliament. Until 1926 incumbent members were required to recontest their seats upon being appointed to Cabinet. These Ministerial by-elections were almost always uncontested.

## 31st Legislative Assembly of Alberta 2023–present

| By-election | Date | Incumbent | Party | Party | Winner | Party | Party | Cause | Retained |
| Edmonton-Strathcona | TBD | Rachel Notley | | New Democratic | TBD | | TBD | Resigned. | TBD |
| Lethbridge-West | December 18, 2024 | Shannon Phillips | | New Democratic | Rob Miyashiro | | New Democratic | Resigned for personal reasons. | Yes |

## 30th Legislative Assembly of Alberta 2019–2023

| By-election | Date | Incumbent | Party | Party | Winner | Party | Party | Cause | Retained |
| Brooks-Medicine Hat | November 8, 2022 | Michaela Frey | | United Conservative | Danielle Smith | | United Conservative | Resigned to provide a seat for new UCP leader and Premier of Alberta, Danielle Smith. | Yes |
| Fort McMurray-Lac La Biche | March 15, 2022 | Laila Goodridge | | United Conservative | Brian Jean | | United Conservative | Resigned to run federally in Fort McMurray—Cold Lake; elected. | Yes |

## 29th Legislative Assembly of Alberta 2015–2019

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Fort McMurray-Conklin | July 12, 2018 | Brian Jean | United Conservative | Laila Goodridge | United Conservative | Resigned several months after losing the UCP leadership election to Jason Kenney. | Yes |
| Innisfail-Sylvan Lake | July 12, 2018 | Don MacIntyre | United Conservative | Devin Dreeshen | United Conservative | Resigned after being charged with sexual interference with a minor. | Yes |
| Calgary-Lougheed | December 14, 2017 | Dave Rodney | United Conservative | Jason Kenney | United Conservative | Resigned to provide a seat for new UCP leader Jason Kenney | Yes |
| Calgary-Greenway | March 22, 2016 | Manmeet Bhullar | Progressive Conservative | Prabhdeep Gill | Progressive Conservative | Killed in highway accident | Yes |
| Calgary-Foothills | September 3, 2015 | Jim Prentice | Progressive Conservative | Prasad Panda | Wildrose | Disclaimed seat and resigned as party leader following government's defeat in general election | No |

## 28th Legislative Assembly of Alberta 2012–2015

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Calgary-West | October 27, 2014 | Ken Hughes | Progressive Conservative | Mike Ellis | Progressive Conservative | Resignation | Yes |
| Calgary-Foothills | October 27, 2014 | Len Webber | Independent | Jim Prentice | Progressive Conservative | Resignation to run federally. Independent MLA originally elected as PC. | No |
| Edmonton-Whitemud | October 27, 2014 | Dave Hancock | Progressive Conservative | Stephen Mandel | Progressive Conservative | Resignation | Yes |
| Calgary-Elbow | October 27, 2014 | Alison Redford | Progressive Conservative | Gordon Dirks | Progressive Conservative | Resignation | Yes |

## 27th Legislative Assembly of Alberta 2008–2012

| By-election | Date | Incumbent | Party | Party | Winner | Party | Party | Cause | Retained |
| Calgary-Glenmore | September 14, 2009 | Ron Stevens | | Progressive Conservative | Paul Hinman | | Wildrose Alliance | Resignation to be appointed a judge | No |

## 26th Legislative Assembly of Alberta 2004–2008

| By-election | Date | Incumbent | Party | Party | Winner | Party | Party | Cause | Retained |
| Drumheller-Stettler | June 12, 2007 | Shirley McClellan | | Progressive Conservative | Jack Hayden | | Progressive Conservative | Resignation | Yes |
| Calgary-Elbow | June 12, 2007 | Ralph Klein | | Progressive Conservative | Craig Cheffins | | Liberal | Resignation | No |

## 25th Legislative Assembly of Alberta 2001–2004

| By-election | Date | Incumbent | Party | Party | Winner | Party | Party | Cause | Retained |
| Wainwright | April 8, 2002 | Robert Fischer | | Progressive Conservative | Doug Griffiths | | Progressive Conservative | Resignation | Yes |

## 24th Legislative Assembly of Alberta 1997–2001

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Red Deer-North | September 25, 2000 | Stockwell Day | Progressive Conservative | Mary Anne Jablonski | Progressive Conservative | Resignation to run federally | Yes |
| Edmonton-Highlands | June 12, 2000 | Pam Barrett | New Democratic | Brian Mason | New Democratic | Resignation | Yes |
| Edmonton McClung | June 17, 1998 | Grant Mitchell | Liberal | Nancy MacBeth | Liberal | Resignation | Yes |

## 23rd Legislative Assembly of Alberta 1993–1997

| By-election | Date | Incumbent | Party | Party | Winner | Party | Party | Cause | Retained |
| Redwater | May 21, 1996 | Nicholas Taylor | | Liberal | Mary Anne Balsillie | | Liberal | Appointed to the Senate | Yes |
| Calgary-McCall | April 20, 1995 | Harry Sohal | | Progressive Conservative | Shiraz Shariff | | Progressive Conservative | Death | Yes |

## 22nd Legislative Assembly of Alberta 1989–1993

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Three Hills | October 26, 1992 | Connie Osterman | Progressive Conservative | Don MacDonald | Liberal | Resignation | No |
| Calgary-Buffalo | July 21, 1992 | Sheldon Chumir | Liberal | Gary Dickson | Liberal | Death | Yes |
| Little Bow | March 5, 1992 | Raymond Speaker | Progressive Conservative | Barry McFarland | Progressive Conservative | Resignation | Yes |
| Edmonton-Strathcona | December 17, 1990 | Gordon Wright | New Democratic | Barrie Chivers | New Democratic | Death | Yes |
| Stettler | May 9, 1989 | Brian C. Downey | Progressive Conservative | Don Getty | Progressive Conservative | Resignation to provide a seat for Premier Getty, after he lost his seat in the general election. | Yes |

## 21st Legislative Assembly of Alberta 1986–1989

| By-election | Date | Incumbent | Party | Party | Winner | Party | Party | Cause | Retained |
| Chinook | November 23, 1987 | Henry Kroeger | | Progressive Conservative | Shirley McClellan | | Progressive Conservative | Death | Yes |

## 20th Legislative Assembly of Alberta 1982–1986

| By-election | Date | Incumbent | Party | Party | Winner | Party | Party | Cause | Retained |
| Edmonton-Whitemud | December 11, 1985 | Robert Keith Alexander | | Progressive Conservative | Don Getty | | Progressive Conservative | Resignation to provide a seat for Premier Getty after his election as PC leader. | Yes |
| Spirit River-Fairview | February 21, 1985 | Grant Notley | | New Democratic | Jim Gurnett | | New Democratic | Death (airplane crash) | Yes |

## 19th Legislative Assembly of Alberta 1979–1982

| By-election | Date | Incumbent | Party | Party | Winner | Party | Party | Cause | Retained |
| Olds-Didsbury | February 17, 1982 | Robert C. Clark | | Social Credit | Gordon Kesler | | Western Canada Concept | Resignation | No |
| Barrhead | November 21, 1979 | Hugh Horner | | Progressive Conservative | Ken Kowalski | | Progressive Conservative | Resignation | Yes |

## 18th Legislative Assembly of Alberta 1975–1979

no by-elections

## 17th Legislative Assembly of Alberta 1971–1975

| By-election | Date | Incumbent | Party | Party | Winner | Party | Party | Cause | Retained |
| Calgary-Foothills | June 25, 1973 | Len Werry | | Progressive Conservative | Stewart McCrae | | Progressive Conservative | Death | Yes |
| Stettler | February 14, 1972 | Jack Robertson | | Progressive Conservative | Graham Harle | | Progressive Conservative | Death | Yes |

## 16th Legislative Assembly of Alberta 1967–1971

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Edson | October 28, 1969 | William Switzer | Liberal | Robert Wagner Dowling | Progressive Conservative | Death | No |
| Strathcona East | February 10, 1969 | Ernest Manning | Social Credit | William Yurko | Progressive Conservative | Resignation concurrent with his retirement as Premier. | No |
| Lac La Biche | August 20, 1968 | Michael Maccagno | Liberal | Damase Bouvier | Social Credit | Resignation to run federally | No |

## 15th Legislative Assembly of Alberta 1963–1967

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Pincher Creek-Crowsnest | October 6, 1966 | William Kovach | Social Credit | Garth Turcott | New Democratic | Death | No |
| Edson | March 29, 1965 | Norman Willmore | Social Credit | William Switzer | Liberal | Death | No |
| Three Hills | January 20, 1964 | Petrie Meston | Social Credit | Roy Davidson | Social Credit | Death | Yes |

## 14th Legislative Assembly of Alberta 1959–1963

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Bonnyville | November 27, 1961 | Karl Nordstrom | Social Credit | Romeo Lamothe | Social Credit | Death | Yes |
| Peace River | October 26, 1961 | William Gilliland | Social Credit | Euell Montgomery | Social Credit | Death | Yes |
| Medicine Hat | January 19, 1961 | Elizabeth G. Robinson | Social Credit | Harry Leinweber | Social Credit | Death | Yes |
| Didsbury | November 30, 1960 | James Lawrence Owens | Social Credit | Robert Curtis Clark | Social Credit | Death | Yes |

## 13th Legislative Assembly of Alberta 1955–1959

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Olds | February 9, 1959 | Frederick Niddrie | Social Credit | Roderick Macleod | Social Credit | Death | Yes |
| Calgary | October 2, 1957 | Arthur Ryan Smith | Conservative | Ernest Watkins | Conservative | Resignation to run federally | Yes |
| Stettler | November 15, 1956 | John Etter Clark | Social Credit | Galen Norris | Social Credit | Death (Committed suicide after murdering seven people) | Yes |

## 12th Legislative Assembly of Alberta 1952–1955

| By-election | Date | Incumbent | Party | Party | Winner | Party | Party | Cause | Retained |
| Red Deer | February 15, 1954 | David A. Ure | | Social Credit | Cam Kirby | | Conservative | Death | No |
| Medicine Hat | December 21, 1953 | John Lyle Robinson | | Social Credit | Elizabeth G. Robinson | | Social Credit | Death | Yes |

## 11th Legislative Assembly of Alberta 1948–1952

| By-election | Date | Incumbent | Party | Party | Winner | Party | Party | Cause | Retained |
| Grouard | June 21, 1951 | John Barrett Wood | | Social Credit | Joseph Desfosses | | Liberal | Resignation | No |
| Olds | November 16, 1950 | Norman E. Cook | | Social Credit | Frederick Niddrie | | Social Credit | Death | Yes |

## 10th Legislative Assembly of Alberta 1944–1948

| By-election | Date | Incumbent | Party | Party | Winner | Party | Party | Cause | Retained |
| Warner | August 6, 1945 | Solon Earl Low | | Social Credit | Leonard Halmrast | | Social Credit | Resignation to run federally | Yes |

## 9th Legislative Assembly of Alberta 1940–1944

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Red Deer | December 16, 1943 | Alfred Speakman | Independent | David A. Ure | Social Credit | Death | No |
| Edmonton | September 22, 1942 | David Milwyn Duggan | Independent | Elmer Ernest Roper | Cooperative Commonwealth | Death | No |
| Camrose | February 6, 1941 | David Bertrum Mullen | Social Credit | Chester Sayers | Social Credit | Death | Yes |
| Vegreville | June 20, 1940† | George Woytkiw | Social Credit | Solon Earl Low | Social Credit | Resignation to provide a seat for Low | Yes |
† Won by acclamation

## 8th Legislative Assembly of Alberta 1935–1940

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Athabasca | November 7, 1938 | Charles Cathmer Ross | Social Credit | Clarence Tade | Social Credit | Death | Yes |
| Lethbridge | December 2, 1937 | Hans Wight | Social Credit | Peter M. Campbell | Unity | Resignation | No |
| Edmonton | October 7, 1937 | George Van Allen | Liberal | Edward Leslie Gray | Liberal | Death | Yes |
| Grouard | December 7, 1936 | Leonidas Giroux | Liberal | Joseph Tremblay | Liberal | Death | Yes |
| Edmonton | June 22, 1936 | William R. Howson | Liberal | Walter Morrish | Liberal | Appointed a judge | Yes |
| Okotoks-High River | November 4, 1935† | William Morrison | Social Credit | William Aberhart | Social Credit | Resignation to provide a seat for Aberhart | Yes |
| Athabasca | November 4, 1935† | Clarence Tade | Social Credit | Charles Cathmer Ross | Social Credit | Resignation to provide a seat for Ross | Yes |
† Won by acclamation

## 7th Legislative Assembly of Alberta 1930–1935

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Calgary | January 15, 1934 | George Harry Webster | Liberal | William Henry Ross | Liberal | Death | Yes |
| Calgary | January 19, 1933 | Harold McGill | Conservative | Norman Hindsley | Independent | Appointed Superintendent-General of Indian Affairs | No |
| Camrose | October 25, 1932 | Vernor Smith | United Farmers | Chester Ronning | United Farmers | Death | Yes |
| Red Deer | November 16, 1931 | George Wilbert Smith | United Farmers | William Ernest Payne | Conservative | Death | No |
| Edmonton | January 9, 1931 | Charles Yardley Weaver | Conservative | Frederick Jamieson | Conservative | Death | Yes |

## 6th Legislative Assembly of Alberta 1926–1930

| By-election | Date | Incumbent | Party | Party | Winner | Party | Party | Cause | Retained |
| Medicine Hat | May 1, 1928 | Charles Pingle | | Liberal | Hector Lang | | Liberal | Death | Yes |

## 5th Legislative Assembly of Alberta 1921–1926

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Medicine Hat | September 29, 1925 | William Johnston | Dominion Labor | Charles Pingle | Liberal | Death | No |
| Edmonton | October 27, 1924 | John R. Boyle | Liberal | William Thomas Henry | Liberal | Resignation. Appointed a judge | Yes |
| Grouard | July 11, 1924 | Jean Côté | Liberal | Leonidas Giroux | Liberal | Resignation. Appointed to the Senate | Yes |
| Calgary | January 15, 1923 | Robert Chambers Edwards | Independent | William McCartney Davidson | Independent | Death | Yes |
| Whitford | July 10, 1922 | Andrew Shandro | Liberal | Mike Chornohus | United Farmers | Result of previous election voided. | No |
| Sedgewick | July 10, 1922† | Charles Stewart | Liberal | Albert Andrews | United Farmers | Resignation. Appointed to the federal cabinet | No |
| Ribstone | July 10, 1922 | Charles O. Wright | United Farmers | William Farquharson | United Farmers | Death | Yes |
| Vermilion | December 9, 1921† | Richard Gavin Reid | United Farmers | Richard Gavin Reid | United Farmers | Sought re-election upon appointment as Minister of Health and Municipal Affairs | Yes |
| Ponoka | December 9, 1921† | Percival Baker | United Farmers | John Edward Brownlee | United Farmers | Death | Yes |
| Peace River | December 9, 1921† | Donald MacBeth Kennedy | United Farmers | Herbert Greenfield | United Farmers | Resignation to provide a seat for Premier Greenfield and to run federally | Yes |
| Okotoks | December 9, 1921† | George Hoadley | United Farmers | George Hoadley | United Farmers | Sought re-election upon appointment as Minister of Agriculture | Yes |
| Medicine Hat | December 9, 1921† | Perren Baker | United Farmers | Perren Baker | United Farmers | Sought re-election upon appointment as Minister of Education | Yes |
| Camrose | December 9, 1921† | Vernor Smith | United Farmers | Vernor Smith | United Farmers | Sought re-election upon appointment as Minister of Railways and Telephones | Yes |
| Calgary | December 9, 1921† | Alex Ross | Dominion Labor | Alex Ross | Dominion Labor | Sought re-election upon appointment as Minister of Public Works | Yes |
† Won by acclamation

## 4th Legislative Assembly of Alberta 1917–1921

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Athabasca | June 3, 1920 | Alexander Grant MacKay | Liberal | George Mills | Liberal | Death | Yes |
| Cochrane | November 3, 1919 | Charles W. Fisher | Liberal | Alexander Moore | United Farmers | Death | No |
| Red Deer | October 28, 1918 | Edward Michener | Conservative | John Gaetz | Liberal | Appointed to the Senate | No |
| Grouard | October 21, 1918† | Jean Côté | Liberal | Jean Côté | Liberal | Sought reelection upon appointment as Provincial Secretary | Yes |
| Athabasca | September 27, 1918† | Alexander Grant MacKay | Liberal | Alexander Grant MacKay | Liberal | Sought reelection upon appointment as Minister of Municipal Affairs | Yes |
| Vermilion | November 19, 1917† | Arthur Sifton | Liberal | Arthur Ebbett | Liberal | Appointed to the federal cabinet | Yes |
| Camrose | November 9, 1917 | George P. Smith | Liberal | George P. Smith | Liberal | Sought reelection upon appointment as Provincial Secretary | Yes |
† Won by acclamation

## 3rd Legislative Assembly of Alberta 1913–1917

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Whitford | March 15, 1915 | Andrew Shandro | Liberal | Andrew Shandro | Liberal | Void Election | Yes |
| Wetaskiwin | November 17, 1914 | Charles H. Olin | Liberal | Hugh John Montgomery | Liberal | Death | Yes |
| Beaver River | December 15, 1913† | Wilfrid Gariépy | Liberal | Wilfrid Gariépy | Liberal | Sought reelection upon appointment as Minister of Municipal Affairs | Yes |
| Bow Valley | June 12, 1913† | George Lane | Liberal | Charles Richmond Mitchell | Liberal | Resignation to provide a seat for Mitchell | Yes |
† Won by acclamation

## 2nd Legislative Assembly of Alberta 1909–1913

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Sturgeon | May 27, 1912 | John R. Boyle | Liberal | John R. Boyle | Liberal | Sought reelection upon appointment as Minister of Education | Yes |
| Sedgewick | May 27, 1912 | Charles Stewart | Liberal | Charles Stewart | Liberal | Sought reelection upon appointment as Minister of Municipal Affairs | Yes |
| Edmonton | May 27, 1912 | Charles Wilson Cross | Liberal | Charles Wilson Cross | Liberal | Sought reelection upon appointment as Attorney General | Yes |
| Claresholm | May 27, 1912 | Malcolm McKenzie | Liberal | Malcolm McKenzie | Liberal | Sought reelection upon appointment as Provincial Treasurer | Yes |
| Cardston | May 27, 1912 | John William Woolf | Liberal | Martin Woolf | Liberal | Resignation | Yes |
| Pincher Creek | October 31, 1911 | David Warnock | Liberal | John Kemmis | Conservative | Resignation to run federally | No |
| Lethbridge City | October 31, 1911 | William Ashbury Buchanan | Liberal | John Smith Stewart | Conservative | Resignation to run federally | No |
| Gleichen | October 31, 1911 | Archibald J. McArthur | Liberal | Harold Riley | Conservative | Death | No |
| Calgary | October 31, 1911 | R. B. Bennett | Conservative | Thomas Tweedie | Conservative | Resignation to run federally | Yes |
| Macleod | October 3, 1910 | Colin Genge | Liberal | Robert Patterson | Farmers* | Death | No |
| Gleichen | October 3, 1910 | Ezra Riley | Liberal | Archibald J. McArthur | Liberal | Sought reelection in protest against the leadership of the Liberal Party | Yes |
| Vermilion | June 29, 1910 | Archibald Campbell | Liberal | Arthur Sifton | Liberal | Resignation to provide a seat for Premier Sifton | Yes |
| Medicine Hat | June 29, 1910 | William Finlay | Liberal | Charles Richmond Mitchell | Liberal | Resignation | Yes |
| Lethbridge District | June 22, 1910† | Archibald J. McLean | Independent Liberal | Archibald J. McLean | Liberal | Sought reelection upon appointment as Provincial Secretary | No |
| Olds | November 23, 1909 | Duncan Marshall | Liberal | Duncan Marshall | Liberal | Sought reelection upon appointment as Minister of Agriculture | Yes |
† Won by acclamation
*Patterson was elected with Conservative support and sat as a Conservative in the Legislature

## 1st Legislative Assembly of Alberta 1905–1909

| By-election | Date | Incumbent | Party | Winner | Party | Cause | Retained |
| Lethbridge | January 8, 1909† | William Simmons | Liberal | Donald McNabb | Labour | Resignation to run federally | No |
| Gleichen | December 7, 1906 | Charles Stuart | Liberal | Ezra Riley | Liberal | Appointed a judge | Yes |
| Vermilion | July 16, 1906† | Matthew McCauley | Liberal | James Bismark Holden | Liberal | Appointed Warden of Edmonton Penitentiary | Yes |
| Lethbridge | April 12, 1906 | Leverett DeVeber | Liberal | William Simmons | Liberal | Appointed to the Senate | Yes |
† Won by acclamation