The Eastern Orthodox Church is the primary religious confession in Russia, Ukraine, Romania, Greece, Belarus, Serbia, Bulgaria, Georgia, Moldova, North Macedonia, Cyprus, and Montenegro.

Very roughly, Orthodox Judaism can be divided between Haredi Judaism, which is more conservative and insular, and Modern Orthodox Judaism, which is relatively open to the outside world and tends to engage in political activism, especially concerning Israel advocacy.

An orthodox religious belief or interpretation is one handed down by a church's founders or leaders. When capitalized, as in Orthodox Judaism, Orthodox refers to a branch within a larger religious organization that claims to honor the religion's original or traditional beliefs.

ORTHODOX definition: 1. (of beliefs, ideas, or activities) considered traditional, normal, and acceptable by most…. Learn more.

Discover an overview of the meaning, history, and beliefs of Orthodoxy from the Great Schism to the present day. Learn more about what makes the Orthodox Church unique!

The word orthodox (“right believing”) has traditionally been used in the Greek-speaking Christian world to designate communities or individuals who preserved the true faith (as defined by those councils), as opposed to those who were declared heretical.

What is Orthodox Christianity? The Orthodox Christian Faith proclaims the Gospel of Jesus Christ, the teachings of the Apostles, and the tradition and life of the living Church worldwide through worship, communion, witness, and service.

The Orthodox Church is the one Church founded by Jesus Christ and his apostles, begun at the day of Pentecost with the descent of the Holy Spirit in A.D. 33. It is also known (especially in the contemporary West) as the Eastern Orthodox Church or the Greek Orthodox Church.

orthodox, (from Greek orthodoxos, “of the right opinion”), true doctrine and its adherents as opposed to heterodox or heretical doctrines and their adherents. The word was first used in early 4th-century Christianity by the Greek Fathers.

Read nine fascinating facts about the Eastern Orthodox Church, plus find out how you can dig deeper into the Orthodox faith.