By-elections to the 44th Canadian Parliament may be held to fill vacancies in the House of Commons of Canada between the 2021 federal election and the 45th federal election. The 44th Canadian Parliament has existed since 2021 with the membership of its House of Commons having been determined by the results of the Canadian federal election held on September 20, 2021. The Liberal Party of Canada has a minority government during this Parliament, supported by the New Democratic Party in a confidence-and-supply agreement.
No by-elections have been held during the 44th Parliament thus far, although the resignation of Sven Spengemann (Liberal, Mississauga—Lakeshore), to take on a role at the United Nations, will trigger a by-election.
The writ for a by-election must be dropped no sooner than 11 days and no later than 180 days after the Chief Electoral Officer is officially notified of a vacancy via a warrant issued by the Speaker. Under the Canada Elections Act, the minimum length of a campaign is 36 days between dropping the writ and election day.
|Mississauga—Lakeshore||On or before January 9, 2023[a]||Sven Spengemann||Liberal||Resigned to accept a position with the United Nations.|
The riding of Mississauga—Lakeshore was vacated on May 27, 2022 following the resignation of Liberal MP Sven Spengemann to accept a position with the United Nations. Spengemann had represented the riding since 2015, when he defeated Conservative incumbent Stella Ambler.
Former MPP Charles Sousa, who represented the area provincially from 2007 to 2018 and served as the Ontario Minister of Finance from 2013 to 2018, is considering running for the Liberal nomination, while Michael Ras, who finished second to Spengemann in 2021, is considering running for the Conservative nomination.