Carney calls December byelections for 6 ridings in Ontario, Quebec and Saskatchewan

Prime Minister Mark Carney has announced six by-elections scheduled for December in Ontario, Quebec, and Saskatchewan. These elections will fill six parliamentary seats that have become vacant due to recent resignations of MPs. In Ontario, voters will elect representatives for the ridings of Brantford-Brant South and Scarborough North.

The Brantford-Brant South seat was left vacant by Conservative MP Larry Brock, who returned to his role as a Crown prosecutor. The Liberal Party has selected Joy O’Donnell, a certified financial planner, to fill this position, while the Conservatives have nominated former Brantford mayor Kevin Davis. Davis' nomination has faced some criticism, as Brock had endorsed local pastor Dave Carroll as his successor, who is now considering a run as an independent candidate.

In Scarborough North, Liberal MP Shaun Chen has stepped down due to health concerns following a car accident in October 2025. The next three ridings to be contested are in Quebec. Rosemont-La Petite-Patrie was vacated by NDP MP Alexandre Boulerice, who ran for the provincial Parti Quebecois in 2026 and won. Saint-Hyacinthe-Bagot-Acton, a Bloc Quebecois seat, was held by Simon-Pierre Savard-Tremblay, who also ran for the Parti Quebecois in 2026 and was victorious.

The Liberal Party has nominated Guy Cormier, a former Desjardins CEO, to represent the third Quebec riding of Laurier-Sainte-Marie, which had been held by Liberal MP Steven Guilbeault who resigned in August. Quebec's riding selection will also see a by-election in Yorkton-Melville, a constituency represented by Conservative MP Cathay Wagantall since 2015.

Yorkton Mayor Aaron Kienle has been chosen as the Liberal nominee, while the Conservatives have nominated Nelson Pohl. The NDP have yet to announce a candidate.