The 1939 Macdonald Brier, the Canadian men's national curling championship, was held from March 5 to 9, 1939 at the Granite Club in Toronto, Ontario. Both Team Manitoba and Team Ontario finished round robin play with 8-1 records, necessitating a tiebreaker playoff for the Brier championship. Ontario, who was skipped by , won the tiebreaker game over Manitoba 12-10 to capture Ontario's second Brier Tankard.