The 2025 Montreal Alouettes season was the 58th season for the team in the Canadian Football League and their 70th overall. While on their bye week, the Alouettes qualified for the playoffs for the sixth consecutive season after the Ottawa Redblacks lost in week 18 and were eliminated from post-season contention. The Alouettes attempted to win their ninth Grey Cup championship, but were defeated in the championship game by the Saskatchewan Roughriders.