The Ursuline Convent Riots were riots occurring on August 11 and August 12, 1834 in Charlestown, Massachusetts, near Boston in what is now Somerville, Massachusetts. During the riot, a convent of Roman Catholic Ursuline nuns was burned down by a Protestant mob. The event was triggered by reported abuse of a member of the order, and was fuelled by the rebirth of extreme anti-Catholic sentiment in antebellum New England.