Nominations closed on March 23, at 2 pm local time.
University—Rosedale A
by-election was held in the federal riding of
University—Rosedale in
Ontario, Canada, following the January 9, 2026, resignation of incumbent
Liberal MP
Chrystia Freeland due to her accepting a position as economic advisor to the
Office of the President of Ukraine. The
Chief Electoral Officer of Canada received formal notification of the vacancy from the
Speaker of the House of Commons of Canada on January 9, 2026. The date of the by-election must be announced between January 20 and July 8, 2026. The by-election must be held on a Monday, at least 36 days but no more than 50 days after the day the by-election is announced. Accordingly, the earliest date that University—Rosedale by-election could have been held was March 2, 2026. The Liberals announced
Danielle Martin as their candidate on January 31. Serena Purdy, the NDP candidate in this riding in the 2025 federal election, announced on March 3 that she would be the party's candidate. The Greens announced candidate Andrew Massey on February 12. Independent Adam Golding announced his candidacy in mid-February; he previously finished last in the riding in the 2025 federal election. The Centrist Party announced Imran Khan as their candidate on February 16; Khan previously ran in Scarborough Southwest in the 2025 federal election. The Conservatives announced Don Hodgson as their candidate on March 11. Martin was elected, holding this seat for the Liberals. Her victory, the first out of the three by-elections called on the night, took the Liberals to Majority Government status.
Scarborough Southwest A by-election was held in the federal riding of
Scarborough Southwest in
Ontario, Canada, following the announced resignation of incumbent
Liberal MP
Bill Blair on February 2, 2026. The
Chief Electoral Officer of Canada received formal notification of the vacancy from the
Speaker of the House of Commons of Canada on February 2, 2026. The date of the by-election must be announced between February 13 and August 1, 2026. The by-election must be held on a Monday, at least 36 days but no more than 50 days after the day the by-election is announced. Accordingly, the earliest date that the Scarborough Southwest by-election could be held is March 23, 2026. The Liberals announced then–
Ontario NDP deputy leader and
MPP Doly Begum as their candidate on February 3. The New Democratic Party is running Fatima Shaban, who was also the party's candidate in 2025. The Greens announced Pooja Malhotra as their candidate on February 12. Begum was elected, holding this seat for the Liberals. Auguste was elected by an increased margin according to preliminary results, holding this seat for the Liberals. ==Pending by-elections==