| Race details | |
|---|---|
| Race 3 of 13 in the 1975 USAC Championship Car season | |
 | |
| Date | March 9, 1975 |
| Official name | 1975 California 500 |
| Location | Ontario Motor Speedway, Ontario, California, United States |
| Course | Permanent racing facility 2.500 mi / 4.023 km |
| Distance | 200 laps 500.000 mi / 804.672 km |
| Pole position | |
| Driver |  A. J. Foyt (A. J. Foyt Racing) |
| Time | 196.549 mph (316.315 km/h) |
| Podium | |
| First | A. J. Foyt (A. J. Foyt Racing) |
| Second | Bobby Unser (All American Racers) |
| Third | Steve Krisiloff (Ralph Wilke) |
The 1975 California 500, the sixth running of the event, was held at the Ontario Motor Speedway in Ontario, California, on Sunday, March 9, 1975. The event was race number 3 of 13 in the 1975 USAC Championship Car season. The race was won by A. J. Foyt, his first California 500 victory.