Nashville Superspeedway is a motor racing complex located in Gladeville, Tennessee about 30 miles (48 km) southeast of Nashville. The track was built in 2001 and is currently used for events, driving schools and GT Academy, a reality television competition. The facility is slated to host its first NASCAR Cup race, the Ally 400, after a decades long hiatus on June 20, 2021.

It is a concrete oval track 1.333 miles long. Nashville Superspeedway is owned by Dover Motorsports, Inc., which also owns Dover International Speedway. Nashville Superspeedway was the longest concrete oval in NASCAR during the time it was on the NASCAR Xfinity Series and NASCAR Camping World Truck Series circuits. Current permanent seating capacity is approximately 25,000. Additional portable seats are brought in for some events, and seating capacity can be expanded to 150,000. Infrastructure is in place to expand the facility to include a short track, drag strip, and road course.

At its peak, the facility hosted four major races each year: two NASCAR Xfinity Series races and two NASCAR Gander RV & Outdoors Truck Series races (one per year prior to 2010). The IndyCar Series Firestone Indy 200 was run at the track from its opening until 2008. Each feature event was usually accompanied by a companion event from lower-tier series such as ARCA and Indy Lights. NASCAR continually showed little interest in staging a NASCAR Cup Series race at the track.

In October 2009, Dover Motorsports decided to close Memphis Motorsports Park, and the Memphis Truck race originally scheduled for late June 2010 was moved to Nashville Superspeedway on April 2, one day prior to the annual Nationwide Series race at the track. The April Truck race was known as the "Nashville 200". Nashville Superspeedway became the only facility on the circuit to host two Truck Series races without hosting a NASCAR Cup event.

As is a Nashville metropolitan tradition, specially-designed Gibson Les Paul guitars are presented to race winners in place of conventional trophies. The track also has a reputation for producing many first-time winners.

The track is referred by the classic term of a "superspeedway" (a track of one mile (1.6 km) or longer, compared to a short track), and is named to differentiate itself from the .596 mile Fairgrounds Speedway (previously known as Nashville Speedway USA) at the Tennessee State Fairgrounds near downtown Nashville. Until 1984, Nashville Speedway USA had conducted a pair of 420-lap Cup races, but NASCAR pulled its sanctioning license from the circuit after disputes over who would manage the track took place prior to the start of the 1985 season.

On June 2, 2020, reports began to surface that Nashville Superspeedway would reopen in 2021 and would host a NASCAR Cup Series race, with a date of Sunday, June 20. The race would replace one of the two races the series runs at Dover International Speedway, which is also owned by Dover Motorsports. On June 3, NASCAR confirmed that the track will reopen to host a Cup race in 2021, replacing one of the two Dover dates. The track brought on sports management executive Erik Moses as track president in August 2020 ahead of the reopening.