| 1931 AAA Championship Car season | |
|---|---|
| AAA National Championship Trail | |
| Season | |
| Races | 7 |
| Start date | May 30 |
| End date | September 12 |
| Awards | |
| National champion |  Louis Schneider |
| Indianapolis 500 winner | Louis Schneider |
The 1931 AAA Championship Car season consisted of seven races, beginning in Speedway, Indiana on May 30 and concluding in Syracuse, New York on September 12. There was one non-championship race. The AAA National Champion and Indianapolis 500 winner was Louis Schneider.
Joe Caccia and his driving mechanic Clarence Grover died at Indianapolis during practice. Jimmy Gleason died at Syracuse during practice.