The Ally 400 is a NASCAR Cup Series race at Nashville Superspeedway in Gladeville, Tennessee. The first race took place in 2021, the first Cup event in the Nashville area since 1984.

Nashville Superspeedway is a 1.330-mile (2.140 km) tri-oval intermediate speedway in Lebanon, Tennessee. The track has held a variety of racing series since its opening in 2001, including NASCAR and the IndyCar Series. It has been owned by Speedway Motorsports, LLC (SMI) since 2021, with Matt Greci currently serving as the track's general manager. The track is served by Interstate 840 and Tennessee State Route 452.