What Churches Fall Under Orthodox? A Comprehensive Guide for Americans

When most Americans think of "Orthodox," they often picture a specific type of Eastern European church with ornate icons and a distinct style of worship. While this image is certainly a part of the picture, the term "Orthodox" actually encompasses a much broader and more ancient family of Christian churches. Understanding which churches fall under the umbrella of "Orthodox" requires a look at their history, theology, and organizational structure.

At its core, the term "Orthodox Church" refers to churches that are in communion with the Ecumenical Patriarch of Constantinople. This communion is a sign of shared faith, sacraments, and apostolic succession, meaning they trace their leadership back to the original apostles of Jesus Christ.

The Two Main Branches of Orthodoxy

Broadly speaking, Orthodox Christianity can be divided into two major, interconnected branches:

1. The Eastern Orthodox Church

This is the branch most commonly recognized in the West and is the largest of the Orthodox communions. It is characterized by its adherence to the decisions of the first seven Ecumenical Councils and its distinct liturgical traditions, which often use ancient languages (like Greek or Old Church Slavonic) and have a rich tradition of iconography.

Within the Eastern Orthodox Church, there are numerous autocephalous (self-governing) churches. These churches are independent in their administration but remain united in faith and communion with each other. Some of the most prominent autocephalous Eastern Orthodox Churches include:

The Ecumenical Patriarchate of Constantinople (Ecumenical Patriarchate of the Greek Orthodox Church): Historically the "first among equals," it is the spiritual center for many Greek Orthodox Christians worldwide.
The Orthodox Church of Alexandria: Encompassing Greek Orthodox Christians in Africa.
The Orthodox Church of Antioch: Serving Greek Orthodox Christians in the Middle East and diaspora.
The Orthodox Church of Jerusalem: Serving Greek Orthodox Christians in the Holy Land.
The Russian Orthodox Church: The largest of the Orthodox Churches by number of adherents, with a significant presence in Russia and its diaspora.
The Serbian Orthodox Church: The national church of Serbia.
The Romanian Orthodox Church: The national church of Romania.
The Bulgarian Orthodox Church: The national church of Bulgaria.
The Georgian Orthodox Church: The autocephalous Orthodox Church of Georgia.
The Church of Greece: The national church of Greece.
The Church of Cyprus: The autocephalous Orthodox Church of Cyprus.
The Orthodox Church of Poland: Serving Polish Orthodox Christians.
The Orthodox Church of Albania: Serving Albanian Orthodox Christians.
The Orthodox Church of the Czech Lands and Slovakia: Serving Orthodox Christians in these countries.
The Orthodox Church in America (OCA): An autocephalous church that traces its origins to Russian missionary work in North America.
Other smaller autocephalous churches and autonomous churches that have varying degrees of self-governance within a larger patriarchate.

2. The Oriental Orthodox Churches

While sharing many similarities with Eastern Orthodoxy in terms of ancient tradition and liturgy, the Oriental Orthodox Churches are a distinct family. They represent churches that did not accept the theological formulations of the Council of Chalcedon in 451 AD. Their Christological understanding, while differing from both Chalcedonian Orthodoxy and Roman Catholicism, is deeply rooted in ancient Christian theology.

The Oriental Orthodox Churches are not in communion with the Eastern Orthodox Churches but are in full communion with each other. The major Oriental Orthodox Churches include:

The Coptic Orthodox Church of Alexandria: One of the oldest Christian communities in the world, originating in Egypt.
The Ethiopian Orthodox Tewahedo Church: A prominent church in Ethiopia, with a rich and unique tradition.
The Eritrean Orthodox Tewahedo Church: The largest Christian church in Eritrea.
The Syriac Orthodox Church: Tracing its roots to Antioch and using Syriac as its liturgical language, with a significant presence in the Middle East and diaspora.
The Armenian Apostolic Church: A distinct national church with a strong identity, particularly in Armenia and its diaspora.
The Malankara Orthodox Syrian Church: An ancient church in India that traces its origins to the Apostle Thomas.

Key Characteristics of Orthodox Churches

Regardless of whether they are Eastern or Oriental Orthodox, these churches share several fundamental characteristics:

Apostolic Succession: All Orthodox bishops trace their lineage directly back to the Apostles.
Sacramental Life: They recognize seven major sacraments (Mysteries), including Baptism, Chrismation (Confirmation), Eucharist (Holy Communion), Repentance (Confession), Anointing of the Sick, Marriage, and Holy Orders.
Iconography: Icons, or sacred images, play a vital role in Orthodox worship and devotion, serving as windows into the divine.
Liturgy: Their worship services (Divine Liturgy or Holy Qurbana) are ancient and often chanted or sung, with a strong emphasis on tradition and beauty.
Theological Continuity: They hold to the teachings of the early Church Fathers and the decrees of the first seven Ecumenical Councils (for Eastern Orthodoxy).
Conciliarity: Decision-making is typically done through councils of bishops, reflecting a communal approach to governance.

When Americans encounter "Orthodox churches," they are most likely referring to the churches within the Eastern Orthodox communion, particularly those with a Greek or Slavic heritage. However, it's important to remember the rich diversity and ancient heritage of the Oriental Orthodox family as well, both of which represent continuous streams of Christian faith stretching back to the earliest centuries of Christianity.

Frequently Asked Questions (FAQ)

How is Orthodoxy different from Catholicism?

While both Orthodox and Catholic churches share much of the same early Christian history and theology, they have been formally separate since the Great Schism of 1054 AD. Key differences include the Orthodox rejection of papal supremacy as understood by the Roman Catholic Church, differing theological nuances on the Holy Spirit (the filioque clause), and distinct liturgical practices and traditions. Both recognize the sacraments and the importance of apostolic succession.

Why are there so many different Orthodox churches?

The existence of multiple autocephalous (self-governing) Orthodox churches reflects the historical development of Christianity across different cultures and geographical regions. As Christianity spread, distinct national and cultural expressions of the faith emerged, leading to self-governing churches that are united in doctrine and sacraments but independent in their administration. This is a way of maintaining unity in faith while respecting diverse cultural contexts.

Are all "Orthodox" churches in communion with each other?

Not entirely. The Eastern Orthodox Church is a communion of churches in full communion with the Ecumenical Patriarch of Constantinople. The Oriental Orthodox Churches are a separate communion, in full communion with each other but not with the Eastern Orthodox. While both share ancient Christian roots, they are distinct bodies that separated over theological and historical disagreements centuries ago.

What does "autocephalous" mean?

"Autocephalous" is a term used to describe an Orthodox Church that is self-governing. This means it has its own primate (like a patriarch or metropolitan) and its own synod of bishops, and it does not answer to any higher ecclesiastical authority outside of its own territory or jurisdiction. However, autocephalous churches remain united in faith and sacraments with other autocephalous churches within their respective communions.

Is the Orthodox Church considered a Protestant denomination?

No, the Orthodox Church is not considered a Protestant denomination. Protestantism emerged from the Western Reformation in the 16th century, while Orthodoxy represents the continuation of the ancient Christian Church in the East. Orthodox churches predate the Reformation by many centuries and have distinct theological, liturgical, and hierarchical structures that differentiate them from Protestantism.