The Cathedral of the Immaculate Conception of the Blessed Virgin Mary is a neo-Gothic cathedral in Moscow, the largest Catholic cathedral in Russia, and the cathedral of the Archdiocese of Our Lady of God headed by Metropolitan Archbishop Paul Pezzi. Moscow's third Catholic church, built before the 1917 revolution, it is one of the three currently operating Catholic churches in Moscow, along with St Ludovic's Church and St Olga's Church.
