Mosport International Raceway (formerly Mosport Park) is a multi-track facility located north of Bowmanville, Ontario. The facility features a 2.453-mile (3.9 km),(length reduced through wider track re-surfacing done in 2003) 10-turn road course; a half-mile paved oval; a 2.4 km advance driver and race driver training facility with a quarter-mile skid pad (Mosport Driver Development Centre) and a 1.4 km kart track (Mosport International Karting). The name "Mosport" is a contraction of Motor Sport, pronounced "Moe-Sport", and came from the enterprise formed to build the track.

It was designed and built in the late 1950s, and held its first major race in 1961, the Player's 200, a sports car race bringing drivers from the world over to rural Ontario. Stirling Moss won the event in a Lotus 19. The proposed hairpin was expanded into two discrete corners, to be of greater challenge to the drivers and more interesting for the spectators, at his suggestion, and is named Moss Corner in his honour. This is a source of lingering confusion as many people call the track Mossport.