| 1938 AAA Championship Car season | |
|---|---|
| AAA National Championship Trail | |
| Season | |
| Races | 2 |
| Start date | May 30 |
| End date | September 10 |
| Awards | |
| National champion |  Floyd Roberts |
| Indianapolis 500 winner | Floyd Roberts |
The 1938 AAA Championship Car season consisted of two races, beginning in Speedway, Indiana on May 30 and concluding in Syracuse, New York on September 10. There were also two non-championship events. The AAA National Champion and Indianapolis 500 winner was Floyd Roberts.
Billy Winn died at Springfield during the non-championships race.[1]