Joseph Volokolamsk Monastery (Иосифо-Волоколамский монастырь, Волоцкий Успенский Иосифов монастырь in Russian) is a monastery for men, located 17 km northeast of Volokolamsk, Moscow Oblast. In the 15th and 16th century, it rivaled the Trinity as the most authoritative and wealthy monastery in Russia.