The 2000 American Le Mans Series was the second running of the IMSA American Le Mans Series, and overall the 30th season of an IMSA GT Championship, dating back to the 1971 edition. It was a series for Le Mans Prototypes (LMP) and Grand Touring (GT) race cars divided into 3 classes: LMP, GTS, and GT. It began March 18, 2000 and ended December 31, 2000 after 12 races.