The Battle of Saint-Charles was a military engagement that occurred on November 25, 1837, during the Lower Canada Rebellion. It took place in the village of Saint-Charles-sur-Richelieu, in the British colony of Lower Canada (present-day Quebec).
Following a Patriote victory at the Battle of Saint-Denis on November 23, British colonial authorities sought to disperse the rebel forces gathering in the Richelieu Valley. Colonel George Wetherall led a column of approximately 420 regular soldiers and several pieces of artillery from Chambly toward Saint-Charles. The Patriote forces, consisting of about 200 to 250 men led by Thomas Storrow Brown, had established a defensive position behind a barricade and within the fortified manor of Seigneur Pierre-Dominique Debartzch.
The engagement began when Wetherall's troops launched an assault on the village. Although the Patriotes held their positions for approximately two hours, the British forces utilized their superior firepower and artillery to breach the defenses. The battle concluded in a decisive British victory. Casualties among the Patriotes were heavy; while contemporary reports varied, historical estimates suggest between 30 and 56 rebels were killed. British losses were minimal, with three soldiers killed and 18 wounded.
The defeat at Saint-Charles had significant strategic consequences for the rebellion. It effectively neutralized the Patriote movement in the Richelieu Valley and allowed British forces to focus their efforts elsewhere, such as the northern districts. Following the battle, Thomas Storrow Brown and several other rebel leaders fled across the border to the United States. The site of the battle is now a National Historic Site of Canada.