Route 66 Raceway is a motorsports facility located in Joliet, Illinois, United States. It consists of a 0.25-mile (0.40 km) dragstrip and a 0.375-mile (0.604 km) dirt oval racetrack. The facility is owned and operated by NASCAR and is located adjacent to Chicagoland Speedway.

Joliet is a city in Will and Kendall counties in the U.S. state of Illinois, 35 miles (56 km) southwest of Chicago. It is the county seat of Will County. It had a population of 150,362 at the 2020 census, making it the third-most populous city in Illinois.