The 1997 Exxon World Sports Car Championship and Supreme GT Series seasons were the 27th season of the IMSA GT Championship. It consisted of open-cockpit prototypes referred to as World Sports Car (WSC) and Grand Tourer-style racing cars divided into GTS-1, GTS-2, and GTS-3 classes.
It began February 1, 1997, and ended October 26, 1997, after eleven rounds. 1997 would mark the final year in IMSA GT for the 24 Hours of Daytona and the Six Hours of Watkins Glen. In 1998, the SCCA's revived United States Road Racing Championship would acquire the events.