There exist two distinct Christian communions known by the appellation "Orthodox," namely the Eastern Orthodox Church and the Oriental Orthodox Church.
The various autocephalous and autonomous churches of the Eastern Orthodox Church are distinct in terms of administration and local culture, but for the most part exist in full communion with one another. Some tensions exist in the philosophical differences between the New Calendarists and the Moderate Old Calendarists.
Algeria • Angola • Benin • Botswana
Burkina Faso • Burundi • Cameroon
Cape Verde • Central African Republic
Chad • Comoros • Côte d'Ivoire
DR of Congo • Republic of Congo
Djibouti • Egypt • Equatorial Guinea
Eritrea • Ethiopia • Gabon • Gambia
Ghana • Guinea • Guinea-Bissau • Kenya
Lesotho • Liberia • Libya
Madagascar • Malawi • Mali • Mauritania
Mauritius • Morocco • Mozambique
Namibia • Niger • Nigeria • Rwanda
São Tomé and Príncipe • Senegal
Seychelles • Sierra Leone • Somalia
South Africa • Sudan • Swaziland
Tanzania • Togo • Tunisia
Uganda • Zambia • Zimbabwe
Bangladesh • Bhutan •
Brunei • Burma • Cambodia •
China • Hong Kong • India •
Indonesia • Japan • Kazakhstan •
Korea • Laos • Malaysia •
Maldives • Mongolia • Nepal • North Korea • Pakistan •
Philippines • Russia • Singapore •
South Korea • Sri Lanka • Taiwan •
Tajikistan • Thailand • Turkmenistan •
Uzbekistan • Vietnam
Albania • Armenia • Austria •
Azerbaijan • Belarus • Belgium •
Bosnia & Herzegovina • Bulgaria •
Cyprus • Denmark • Finland •
France • Georgia •
Germany • Greece •
Iceland • Ireland • Italy •
Jersey • Kosovo • Lithuania •
Luxembourg • Macedonia • Netherlands •
Norway • Malta • Moldova •
Montenegro • Poland • Portugal • Romania •
Russia • Serbia • Turkey • Ukraine • United Kingdom