| Autodrome Saint-Eustache | |
| Location: | Saint-Eustache, Quebec |
| Coordinates: | 45.5733°N -73.9625°W |
| Opened: | 1965 |
| Closed: | 2019 |
| Events: | NASCAR Pinty's Series National 250 presented by Public Mobile (2008–2010, 2013–2019) NASCAR Whelen All-American Series Mopar Canadian Superbike Championship Série ACT (2007–2019) CASCAR Super Series (1993–2003, 2005–2006) |
| Layout1: | Oval |
| Surface: | Asphalt |
| Miles First: | True |
| Length Km: | 0.64 |
| Length Mi: | 0.40 |
| Layout2: | Road course |
| Surface2: | Asphalt |
| Length Km2: | 1.77 |
| Length Mi2: | 1.10 |
| Turns2: | 15 |
| Layout3: | Drag strip |
The Autodrome Saint-Eustache was a motor sport complex in Saint-Eustache, Quebec, Canada. Established in 1965, it contained a paved oval and a paved road course with hot pits, grandstands and services.
The oval circuit hosted NASCAR Whelen All-American Series weekly racing, with drivers racing for both the province (Quebec) and the rest of North America. Its premier event was the NASCAR Pinty's Series which raced at the track since the creation of the series. The track also formerly held CASCAR Super Series events.
In an agreement with the City of Saint-Eustache, the property was sold to Hydro-Québec at the end of the 2019 racing season. The expanding infrastructure of the city of Saint-Eustache was cited as the main reason for the track's demise.