1940 AAA Championship Car season

The 1940 AAA Championship Car season consisted of three races, beginning in Speedway, Indiana on May 30 and concluding in Syracuse, New York on September 2. There was also one non-championship event in Langhorne, Pennsylvania. The AAA National Champion was Rex Mays and the Indianapolis 500 winner was Wilbur Shaw.

George Bailey died in practice at Indianapolis before the race. Lou Webb died during the season ending race at Syracuse.

Schedule and results
All races running on Paved/Dirt Oval.

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Final points standings
Note: Drivers had to be running at the finish to score points. Points scored by drivers sharing a ride were split according to percentage of race driven. Starters were not allowed to score points as relief drivers, if a race starter finished the race in another car, in a points scoring position, those points were awarded to the driver who had started the car. The final standings based on reference.