The Church of the Madonna della Difesa (Italian: Chiesa della Madonna della Difesa, French: Église de Notre-Dame-de-la-Défense) is a Catholic church in the neighbourhood of Little Italy in Montreal, Quebec, Canada. It was built by Italian immigrants to the city, specifically those from Molise, to commemorate the apparition of the Madonna in La Difesa, in Casacalenda, Molise. It was designed by Roch Montbriant and Canadian artist Guido Nincheri. It is Romanesque in style and laid out in a Greek-cross floorplan. It was inaugurated in 1919.
It is famous for its large cupola and brick façade, and especially its frescos by Guido Nincheri.