Eastern Orthodoxy by country
Based on the numbers of adherents, the Eastern Orthodox Church (also known as Eastern Orthodoxy) is the second largest Christian communion in the world after the Roman Catholic Church. The most common estimates of the number of Eastern Orthodox Christians worldwide is approximately 200–260 million. The numerous Protestant groups in the world, if taken all together, outnumber the Eastern Orthodox, but they differ theologically and do not form a single communion.
Eastern Orthodoxy by country
As such, any data used to figure the population of Eastern Orthodox per nation, should be understood as estimated rather than exact. Additionally, total numbers of Eastern Orthodox Christians throughout the world may be anywhere from 150 million to 300 million, depending on the studies and definitions which are used.