On June 19, federal by-elections will be held in the electoral districts of Notre-Dame-de-Grâce–Westmount (Quebec), Oxford (Ontario), Winnipeg South Centre (Manitoba) and Portage–Lisgar (Manitoba) to fill vacancies in the House of Commons.

From December 2022 until March of this year, the Chief Electoral Officer of Canada, Stéphane Perrault, received four separate official notices from the Speaker of the House of Commons that the seats were vacant. However, the dates for the election were not announced until May 14, when Prime Minister Justin Trudeau announced a single election date for all four of the vacant seats in the House of Commons.

Three of the seats became vacant by retirement, and the fourth, for Winnipeg South Centre, became vacant upon the death of MP Jim Carr. The announcement date of the by-elections signals the start of the by-election period.