The Grand Prix of Chicago was a Champ Car race last held at Chicago Motor Speedway in Cicero, Illinois, just outside Chicago in the United States.
Indy/Championship car racing first appeared in the Chicago area in 1914–1915 at Galesburg District Fairgrounds. Both races were 100 laps around the dirt oval. AAA held races at Speedway Park, a board track in nearby Maywood, Illinois. The first such race was a event in 1915. Subsequent races ranged from 10 to 300 miles, and the final race was held in 1918. The track was eventually demolished, and the Edward Hines Veterans Hospital now stands on its former location.
Although no races would be held in the Chicago area until 1999, the state of Illinois hosted numerous USAC Championship Car races at Springfield and DuQuoin.
A CART race was held at Chicago Motor Speedway in Cicero, just outside Chicago, from 1999 to 2002. It was discontinued and the track closed after the 2002 race.