Jérôme le Royer de la Dauversière (18 March 1597 – 6 November 1659) was a French nobleman who spent his life in serving the needs of the poor. A founder of the Société Notre-Dame de Montréal he also helped to establish the French colony of Montreal. Although a layman as part of that objective he was the founder of the Congregation of the Religious Hospitallers of St. Joseph Religious Sisters dedicated to the care of the sick poor. He has been declared Venerable by the Catholic Church.