On September 16, federal by-elections will be held in the electoral districts of Elmwood–Transcona (Manitoba) and LaSalle–Émard–Verdun (Quebec) to fill vacancies in the Canadian House of Commons.

On February 1, 2024, the Chief Electoral Officer of Canada, Stéphane Perrault, received official notice from the Speaker of the House of Commons that the seat for LaSalle–Émard–Verdun (Quebec) was vacant.

Perrault subsequently received official notice of the vacancy of the federal seat for Elmwood–Transcona on April 3, 2024.

However, the dates for the election were not announced until Sunday, July 28.

David Lametti, who held the seat in LaSalle–Émard–Verdun (Quebec), had announced his retirement in January.

Daniel Blaikie resigned his seat for Elmwood–Transcona (Manitoba) at the end of March to work as an advisor to Manitoba Premier Wab Kinew.

The announcement date of the by-elections signals the start of the by-election period.