A by-election was held in the federal riding of Battlefords—Lloydminster in Saskatchewan on December 11, 2017 following the resignation of Conservative MP Gerry Ritz The seat was held for the Conservatives, with Rosemarie Falk winning the seat on an increased majority. The by election was held on the same day as 3 others across Canada; Bonavista—Burin—Trinity in Newfoundland and Labrador, Scarborough—Agincourt in Ontario and South Surrey—White Rock in British Columbia.