Ivanovism (Russian: Ивановство, Ивановизм) is a Rodnover (Slavic Neopagan) new religious movement and healing system in Eastern Europe based on the teachings of the Russian mystic Porfiry Korneyevich Ivanov (1898–1983), who elaborated his doctrines by drawing upon Russian folklore. The movement began to take institutional forms between the 1980s and the 1990s, and in the same period it had an influence on the other Rodnover movement of Peterburgian Vedism.