Notre-Dame de l'Assomption Abbey is a Trappist/Cistercian monastery located in Rogersville, New Brunswick, Canada. The monastery dates back to the beginning of the 20th century. Due to religious persecution, a group of Cistercian nuns emigrated to Canada in 1904, from a Cistercian monastery located in Vaise (Lyon), France (which had been founded in 1817) in order to reestablish their monastic community in Rogersville. Their new abbey was established 3.5 kilometres south of Notre Dame du Calvaire Abbey, a monastery established by another group of Trappist monks who had arrived in 1902.