The Église de Saint-Eustache is a historic church located in the town of Saint-Eustache, Quebec, Canada. Built between 1740 and 1800, it is known for its impressive architecture, which combines elements of Gothic and Baroque styles. The church features a striking wooden interior and a large organ, making it a significant cultural landmark in the region. The church is also notable for its role in the 1837-1838 Rebellions in Lower Canada, where it served as a gathering place for local patriots. Today, the Église de Saint-Eustache remains an active place of worship and a popular tourist attraction, reflecting the rich history of the Laurentians region.