The 2015 SpongeBob SquarePants 400 was a NASCAR Sprint Cup Series race held on May 9, 2015, ending shortly after midnight on May 10, 2015 at Kansas Speedway in Kansas City, Kansas. Contested over 267 laps on the 1.5 mile (2.4 km) asphalt speedway, it was the 11th race of the 2015 NASCAR Sprint Cup season. Jimmie Johnson won the race, his third of the season. Kevin Harvick finished second. Dale Earnhardt Jr. finished third. Jeff Gordon and Joey Logano rounded out the top five.

Kansas Speedway is a 1.500-mile (2.414 km) tri-oval intermediate speedway in Kansas City, Kansas. The track, since its inaugural season of racing in 2001, has hosted a variety of racing series, including NASCAR, IndyCar, and the IMSA SportsCar Championship. The track has been owned by NASCAR since 2019, with Patrick Warren serving as the track's president. The track is served by the concurrent Interstate 70, U.S. Route 24, and U.S. Route 40, along with Interstate 435.