The 2017–18 QMJHL season was the 49th season of the Quebec Major Junior Hockey League (QMJHL). The regular season began on September 21, 2017, and ended on March 18, 2018. The playoffs started March 22, 2018, and ended on May 13. The winning team, the Acadie–Bathurst Titan, were awarded the President's Cup and won the Memorial Cup as the QMJHL champion in the 2018 Memorial Cup, which was hosted by the Regina Pats of the WHL at the Brandt Centre in Regina, Saskatchewan from May 18–27, 2018.