The 1980 Labatt Brier, the Canadian men's curling championship was held from March 2 to 9, 1980 at the Stampede Corral in Calgary, Alberta.

The two biggest changes however were a three-team playoff after round robin play would determine the Brier champion with the top team in round robin play receiving a direct bye into the final and a new, shiny Labatt Tankard trophy replaced the old Macdonald Tankard trophy.

[2] Team Saskatchewan, who was skipped by Rick Folk captured the Brier tankard after they defeated Northern Ontario in the final 10–6.

This was the seventh and as of 2023, most recent Brier championship for Saskatchewan and the first of two won by Folk, with his other coming in 1994 with British Columbia.

[6] The Ross Harstone Award was presented to the player chosen by their fellow peers as the curler who best represented Harstone's high ideals of good sportsmanship, observance of the rules, exemplary conduct and curling ability.