Inje Speedium is a motor racing circuit in Inje County, South Korea. The circuit is part of a larger complex, named the Inje Auto Theme Park, that includes a hotel and condominiums. The main course is 3.908 kilometres (2.428 mi), but can be split into separate 2.577-kilometre (1.601 mi) and 1.375-kilometre (0.854 mi) circuits.
The track opened with a round of the Japanese Super Taikyu series on 25 May 2013, and held the opening round of the 2013 Asian Le Mans Series season on 4 August 2013.