1983–84 USAC Championship Car season

The 1983–84 USAC Championship Car season consisted of two races, beginning in Du Quoin, Illinois on September 5, 1983 and concluding in Speedway, Indiana on May 27, 1984. The USAC National Champion and Indianapolis 500 winner was Rick Mears. This was the last year that the Championship comprised more than one race.

Schedule and results
All races running on Oval/Speedway.

Final points standings
Note: The driver who haven't entry at the Indy500 not eligible for points.