Russian Orthodox Church

The Russian Orthodox Church is an Eastern Orthodox church whose historic center is Moscow and whose primate bears the title Patriarch of Moscow and All Rus′.

Eastern Orthodox Church: A communion of self-governing churches sharing Orthodox theology, sacramental worship, and episcopal tradition. The Russian church is one of the largest churches within this wider communion.
Christianization of Kievan Rus': The adoption of Christianity by the polity of Kievan Rus′, traditionally dated to 988 under Prince Vladimir. It marks the church’s foundational conversion within the medieval Rus′ lands.
Holy Synod of the Russian Orthodox Church: The governing body that administered the Russian church during the imperial period after the patriarchate was abolished. Its creation institutionalized state oversight of church affairs from 1721.
Ecumenical Patriarchate of Constantinople: The senior-ranking autocephalous church in Eastern Orthodoxy, led by the Ecumenical Patriarch. Its claims to primacy and authority often differ from Moscow’s.
Russian Orthodox Church in China: The Russian Orthodox ecclesiastical presence in China, including communities and institutions established through missions and migration. It illustrates the church’s missionary expansion beyond Russia’s borders.
Autocephaly: The ecclesiastical status of a church governed by its own head rather than a higher-ranking bishop. Its claims to self-government shape relations with other Orthodox churches.
Metropolitanate of Kiev: The historical Orthodox ecclesiastical province that governed much of the Rus′ lands under the Patriarchate of Constantinople. Its relocation toward Moscow preceded the rise of a distinct Russian church center.
Russian Orthodox Church in the Soviet Union: The church’s experience under Soviet rule, marked by persecution, state control, and periods of limited revival. Soviet policies destroyed institutions and reshaped religious life across the church.
Orthodox Church of Ukraine: An autocephalous Eastern Orthodox church recognized by the Ecumenical Patriarchate in 2019. Its independence from Moscow became the focus of a major jurisdictional dispute.
Russian Orthodox Church in Japan: The Russian Orthodox mission and church communities established in Japan, later organized as the autonomous Orthodox Church in Japan. The Japanese mission developed into a local church with historical ties to Moscow.

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