The 1984–85 QMJHL season was the 16th season in the history of the Quebec Major Junior Hockey League. The league experimented for this one season, awarding one point for an overtime loss. Points for an overtime loss would not be awarded again until the 1999–2000 QMJHL season. The Shawinigan Cataractes finished first overall in the regular season, winning the Jean Rougeau Trophy. The Verdun Junior Canadiens won the President's Cup, defeating the Chicoutimi Saguenéens in the finals.