The 2019 Mobil 1 SportsCar Grand Prix was a sports car race sanctioned by the International Motor Sports Association (IMSA). The race was held at Canadian Tire Motorsport Park in Bowmanville, Ontario, on July 7, 2019. This race was the seventh round of the 2019 IMSA SportsCar Championship, and the third round of the 2019 WeatherTech Sprint Cup.

Canadian Tire Motorsport Park is a multi-track motorsport venue located north of Bowmanville, in Ontario, Canada, approximately 75 kilometers east of Toronto. The facility features a 3.957 km (2.459 mi), 10-turn road course; a 2.9 km (1.8 mi) advance driver and race driver training facility with a 0.402 km (0.250 mi) skid pad and a 1.5 km (0.93 mi) kart track. The name "Mosport", a portmanteau of Motor Sport, came from the enterprise formed to build the track.