2003 Atlantic Championship
| 2003 Toyota Atlantic Championship season | |
|---|---|
| Toyota Atlantic Championship Presented by Yokohama | |
| Season | |
| Races | 12 |
| Start date | March 23rd |
| End date | September 28th |
| Awards | |
| Drivers' champion | A. J. Allmendinger |
The 2003 Toyota Atlantic Championship season was contested over 12 rounds. In this one-make formula all drivers had to utilize Swift chassis and Toyota engines. 14 different teams and 24 different drivers competed. All drivers were able to score points. The Toyota Atlantic Championship Presented by Yokohama Drivers' Champion was A. J. Allmendinger driving for RuSPORT.