Russian Orthodoxy in Christianity may refer to:

Eastern Orthodox Church, the Church descended from the Imperial Church of the Byzantine Empire

History of the Eastern Orthodox Church

Russian Orthodox Church

Western Rite Orthodoxy

Old Believers

The word orthodox, from the Greek ortho ('right', 'correct') and doxa ('thought', 'teaching', 'glorification'), is typically used to refer to the correct worship or the correct theological and doctrinal observance of religion, or other forms of...