• Eastern Orthodox Churches
  • Albanian Orthodox Church[?]
  • Orthodox Church of Alexandria[?]
  • Orthodox Church in America
  • Orthodox Church of Antioch[?]
  • Bulgarian Orthodox Church[?]
  • Chinese Orthodox Church[?]
  • Orthodox Church of Constantinople
  • Cypriot Orthodox Church
  • Czech and Slovak Orthodox Church[?]
  • Estonian Orthodox Church[?]
  • Orthodox Church of Finland
  • Georgian Orthodox Church[?]
  • Church of Greece[?]
  • Japanese Orthodox Church[?]
  • Orthodox Church of Jerusalem[?]
  • Orthodox Church of Mount Sinai[?]
  • Polish Orthodox Church[?]
  • Romanian Orthodox Church[?]
  • Russian Orthodox Church
  • Serb Orthodox Church[?]
  • Ukrainian Orthodox Church[?]

• Oriental Orthodox Churches
  • Armenian Apostolic Church
  • Coptic Orthodox Church
  • Ethiopian Orthodox Church[?]
  • Eritrean Orthodox Church[?]
  • Mar Thoma Orthodox Church
  • Syrian Orthodox Church

• Assyrian Church of the East[?]

• Schismatic Orthodox Churches
  • Belorussian Orthodox Church[?]
  • Church of the Genuine Orthodox Christians of Greece[?]
  • Croatian Orthodox Church[?]
  • Macedonian Orthodox Church[?]
  • Montenegrin Orthodox Church[?]
  • Old Believers
  • Russian Orthodox Church Outside Russia[?]
  • Ukrainian Autocephalous Orthodox Church[?]

Celtic Christianity

Gnosticism

• Mandaeanism
• Carpocratians
• Manichaeism
• Borborites
• Bogomils
• Cathars

Catholicism

• Roman Catholic Church
• Eastern Catholic Churches
  • Armenian Catholic Church[?]
  • Chaldean Catholic Church[?]
  • Coptic Catholic Church[?]
  • Ethiopian Catholic Church[?]
  • Maronites
  • Melkites[?]
  • Syrian Catholic Church
  • Syro-Malabar Catholic Church
  • Syro-Malankara Catholic Church[?]
• American Catholic Church[?]
• Catholic Apostolic Church[?]
• Catholic Life Church[?]
• Christ Catholic Church[?]
• Liberal Catholic Church
• North American Old Catholic Church[?]
• Old Catholic Church
• Palmarian Catholic Church[?]
• Polish National Catholic Church[?]
• Philippine Independent Church[?]

Protestantism

• Early Protestants (before Luther)
  • Waldensians
  • Lollards
  • Hussites

• Lutheran
  • Apostolic Lutheran Church of America[?]
  • Association of Free Lutheran Congregations[?]
  • Church of Denmark[?]
  • Church of Estonia[?]
  • Church of Finland
  • Church of Iceland[?]
  • Church of Norway
  • Church of Sweden
  • Church of the Lutheran Brethren of America[?]
  • Church of the Lutheran Confession[?]
  • Evangelical Lutheran Church in America
  • Evangelical Lutheran Church in Canada[?]
  • Evangelical Lutheran Church in South Africa[?]
  • Evangelical Lutheran Synod[?]
  • Laestadian Lutheran Church[?]
  • Lutheran Church of Australia[?]
  • Lutheran Church of New Zealand[?]
  • Lutheran Church - Missouri Synod
  • Lutheran Church - Canada[?]
  • Wisconsin Evangelical Lutheran Synod

• Calvinist
  • Reformed
    • Canadian and American Reformed Churches[?]
    • Christian Reformed Church in North America[?]
    • Church of Lippe
    • Dutch Reformed Church
    • Federation of Swiss Protestant Churches[?]
    • Free Reformed Churches of North America[?]
    • Heritage Reformed Congregations[?]
    • Hungarian Reformed Church in America[?]
    • Orthodox Christian Reformed Church[?]
    • Protestant Reformed Churches in America[?]
    • Reformed Christian Church in Croatia[?]
    • Reformed Church in America[?]
    • Reformed Church in Bavaria and Northwestern Germany
    • Reformed Church in Hungary[?]
    • Reformed Church in the United States[?]
    • Reformed Church of Alsace and Lorraine[?]
    • Reformed Church of Japan[?]
    • Remonstrant Brotherhood[?]
    • United Reformed Church
    • United Reformed Churches in North America[?]
  • Presbyterian
    • Associate Reformed Presbyterian Church[?]
    • Bible Presbyterian Church[?]
    • Church of Scotland
    • Cumberland Presbyterian Church[?]
    • Evangelical Presbyterian Church[?]
    • Evangelical Presbyterian Church in England and Wales[?]
    • Free Church of Scotland[?]
    • Free Church of Scotland Continuing[?]
    • Free Presbyterian Church
    • Free Presbyterian Church of Scotland[?]
    • Korean Presbyterian Church in America[?]
    • Orthodox Presbyterian Church[?]
    • Presbyterian Church in America[?]
    • Presbyterian Church in Ireland[?]
    • Presbyterian Church in Korea[?]
    • Presbyterian Church in the Republic of Korea[?]
    • Presbyterian Church of Aotearoa New Zealand[?]
    • Presbyterian Church of Australia[?]
    • Presbyterian Church of Canada[?]
    • Presbyterian Church of Korea[?]
    • Presbyterian Church of Wales[?]
    • Presbyterian Church USA
    • Reformed Presbyterian Church - Covenanted[?]
    • Reformed Presbyterian Church of Ireland[?]
    • Reformed Presbyterian Church of North America
    • United Free Church of Scotland[?]
    • Uniting Presbyterian Church in Southern Africa[?]
  • see also United / Uniting churches[?]

• Anglicans
  • Anglican Communion
    • Anglican Church in Aotearoa, New Zealand and Polynesia[?]
    • Anglican Church of Australia[?]
    • Anglican Church of Canada[?]
    • Anglican Church of Kenya[?]
    • Anglican Church of Korea[?]
    • Anglican Church of Papua New Guinea[?]
    • Church in Wales[?]
    • Church of England
    • Church of Ireland
    • Church of Nigeria[?]
    • Church of Uganda[?]
    • Church of the Province of Burundi[?]
    • Church of the Province of Central Africa[?]
    • Church of the Province of Melanesia[?]
    • Church of the Province of Myanmar[?]
    • Church of the Province of Rwanda[?]
    • Church of the Province of South East Asia[?]
    • Church of the Province of Southern Africa[?]
    • Church of the Province of Tanzania[?]
    • Church of the Province of the Indian Ocean[?]
    • Church of the Province of the West Indies[?]
    • Church of the Province of West Africa[?]
    • Episcopal Church in Jerusalem and the Middle East[?]
    • Episcopal Church in the USA
    • Episcopal Church of Cuba[?]
    • Episcopal Church of the Sudan[?]
    • Hong Kong Sheng Kung Hui[?]
    • Iglesia Anglicana de la Region Central America[?]
    • Iglesia Anglicana de México[?]
    • Iglesia Anglicana del Cono Sud de las Americas[?]
    • Igreja Episcopal do Brasil[?]
    • Lusitanian Church of Portugal[?]
    • Nippon Sei Ko Kai[?] (Japan)
    • Philippine Episcopal Church[?]
    • Scottish Episcopal Church[?]
    • Spanish Reformed Episcopal Church[?]
  • Schismatic Anglican Churches
    • African Orthodox Church[?]
    • African Orthodox Church of the West[?]
    • African Orthodox Episcopal Church[?]
    • Anglican Mission in America[?]
    • Charismatic Episcopal Church[?]
    • Communion of Evangelical Episcopal Churches[?]
    • Reformed Episcopal Church[?]
    • American Episcopal Church[?]
    • Free Protestant Episcopal Church[?]
    • Southern Episcopal Church[?]

• Methodists
  • African Methodist Episcopal Church[?]
  • African Methodist Episcopal Zion Church[?]
  • Bible Methodist Church[?]
  • British Methodist Episcopal Church[?]
  • Chinese Methodist Church[?]
  • Christian Methodist Episcopal Church[?]
  • Congregational Methodist Church[?]
  • Church of the Nazarene
  • Evangelical Church[?]
  • Evangelical Methodist Church[?]
  • Free Methodist Church[?]
  • Fellowship of Independent Methodist Churches[?]
  • Independent Methodist Church[?]
  • Korean Methodist Church[?]
  • Methodist Church, Hong Kong[?]
  • Methodist Church in Ireland[?]
  • Methodist Church in Singapore[?]
  • Methodist Church of Great Britain[?]
  • Methodist Church of New Zealand[?]
  • Methodist Church of South Africa[?]
  • Methodist Church of Sri Lanka[?]
  • Primitive Methodist Church[?]
  • Salvation Army
  • United Methodist Church
  • Wesleyan Reform Union[?]
  • see also United / Uniting churches[?]

• Pietists[?] & Holiness
  • Church of God (Anderson)[?]
  • Moravians[?]
  • Religious Society of Friends (aka Quakers)

• Plymouth Brethren

• Anabaptist
  • Amish
    • Beachy Amish
    • Nebraska Amish[?]
    • Old Order Amish[?]
    • Swartzendruber Amish
  • Church of the Brethren
  • Hutterites[?]
  • Mennonites
    • Alliance of Mennonite Evangelical Congregations[?]
    • Anabaptist Association of Australia and New Zealand[?]
    • Brethren in Christ[?]
    • Canadian Conference of Mennonite Brethren Churches[?]
    • Church of God in Christ, Mennonite[?] (aka (Holdeman Mennonites]])
    • Conservative Mennonite Conference[?]
    • Chortitzer Mennonite Conference[?]
    • Evangelical Mennonite Church[?]
    • Evangelical Mennonite Conference[?]
    • Evangelical Mennonite Mission Conference[?]
    • Japan Mennonite Brethren Conference[?]
    • Mennonite World Conference[?]
    • Mennonite Church Canada[?]
    • Mennonite Church in the Netherlands[?]
    • Mennonite Church USA[?]
    • Swiss Mennonite Conference[?]
    • US Conferences of Mennonite Brethren Churches[?]

• Baptist
  • American Baptist Associatiation[?]
  • American Baptist Church[?]
  • American Baptist Convention[?]
  • Association of Baptist Churches in Ireland[?]
  • Association of Grace Baptist Churches[?]
  • Baptist Bible Fellowship International[?]
  • Baptist Conference of the Philippines[?]
  • Baptist Convention of Ontario and Quebec[?]
  • Baptist Convention of Western Cuba[?]
  • Baptist General Conference[?]
  • Baptist General Conference of Canada[?]
  • Baptist General Convention of Texas[?]
  • Baptist Missionary Association of America[?]
  • Baptist Union of Australia[?]
  • Baptist Union of Great Britain[?]
  • Baptist Union of New Zealand[?]
  • Baptist Union of Scotland[?]
  • Baptist Union of Western Canada[?]
  • Baptist World Alliance[?]
  • Bible Baptist[?]
  • Canadian Baptist Ministries[?]
  • Canadian Convention of Southern Baptists[?]
  • Central Baptist Association[?]
  • Central Canada Baptist Conference[?]
  • Christian Unity Baptist Association[?]
  • Colored Primitive Baptists[?]
  • Conservative Baptist Association[?]
  • Conservative Baptist Association of America[?]
  • Conservative Baptists[?]
  • Cooperative Baptist Fellowship[?]
  • European Baptist Convention[?]
  • Evangelical Baptists of S. Haiti[?]
  • Fellowship of Evangelican Baptist Churches in Canada[?]
  • Free Will Baptist Church[?]
  • General Association of General Baptists[?]
  • General Association of Regular Baptist Churches[?]
  • General Conference of the Evangelical Baptist Church, Inc.[?]
  • General Six-Principle Baptists[?]
  • Independent Baptists[?] (not strictly a denomination, each local parish is independent)
  • Independent Baptist Church of America[?]
  • Interstate & Foreign Landmark Missionary Baptists Association[?]
  • Landmark Baptist Church[?]
  • Liberty Baptist Fellowship[?]
  • Myanmar Baptist Convention[?]
  • National Baptist Convention of America[?]
  • National Baptist Convention, USA[?]
  • National Baptist Evangelical Life and Soul Saving Assembly of the U.S.A.[?]
  • National Missionary Baptist Convention of America[?]
  • National Primitive Baptist Convention of the U.S.A.[?]
  • North American Baptist Conference[?]
  • Northern Baptist Convention[?]
  • Norwegian Baptist Union[?]
  • Old Baptist Union[?]
  • Old German Baptist Brethren[?]
  • Pentecostal Free Will Baptist Church[?]
  • Primitive Baptists[?]
  • Progressive Baptists[?]
  • Progressive National Baptist Convention[?]
  • Progressive National Baptist Convention, USA[?]
  • Reformed Baptists[?]
  • Regular Baptist Churches, General Association of[?]
  • Regular Baptists[?]
  • Separate Baptists[?]
  • Separate Baptists in Christ[?]
  • Seventh Day Baptists
  • Southeast Conservative Baptists[?]
  • Southern Baptist Convention
  • Southern Baptists of Texas[?]
  • Sovereign Grace Baptists[?]
  • Two-Seed-in-the-Spirit Predestinarian Baptists[?]
  • Union D'Eglises Baptistes Francaises Au Canada[?]
  • United American Free Will Baptist Church (Colored)[?]
  • United Baptist Convention of the Atlantic Provinces[?]
  • United Baptists[?]
  • United Free Will Baptist[?]
  • World Baptist Alliance[?]

• Restoration Movement[?]
  • Disciples of Christ
  • Christian Church[?]
  • Churches of Christ[?]
  • Christadelphians
  • Community of Christ (formerly the Reorganized Church of Jesus Christ of Latter Day Saints)

• Pentecostals
  • Abundant Life Worship Centers[?]
  • Apostolic Assemblies of Christ[?]
  • Apostolic Assembly of the Faith in Christ Jesus[?]
  • Apostolic Church of Pentecost of Canada[?]
  • Apostolic Faith Church[?]
  • Apostolic Overcoming Holy Church of God[?]
  • Assemblies of God[?]
  • Christ Gospel Churches International[?]
  • Christian Congregation of Brazil[?]
  • Church of God (Charleston, Tennessee)[?]
  • Church of God (Cleveland)
  • Church of God by Faith[?]
  • Church of God in Christ
  • Church of God Mountain Assembly[?]
  • Church of God of Prophecy[?]
  • Church of Our Lord Jesus Christ of the Apostolic Faith[?]
  • Elim Pentecostal Church[?]
  • Fire Baptized Holiness Church of God of the Americas[?]
  • God is Love Pentecostal Church[?]
  • International Church of the Foursquare Gospel[?]
  • International Pentecostal Holiness Church[?]
  • Open Bible Standard Churches[?] (association of autonomous churches)
  • Pentecostal Assemblies of Canada[?]
  • Pentecostal Assemblies of the World[?]
  • Pentecostal Church of God[?]
  • Redeemed Christian Church of God[?]
  • United Holy Church of America[?]
  • United Pentecostal Church International

• African Independent Churches[?]
  • Church of the Lord[?]
  • Kimbanguist Church[?]
  • Zion Christian Church[?]

• Adventist
  • Seventh-Day Adventists
  • Advent Christian Church[?]
  • Sabbatarian Adventists[?]
  • Branch Davidians

• Messianic Judaism
  • Chosen People Ministries[?]
  • Jews for Jesus
  • Union of Messianic Jewish Congregations[?]

• United / Uniting Churches[?]
  • China Christian Council[?]
  • Church of Bangladesh[?]
  • Church of Pakistan[?]
  • Church of North India[?]
  • Church of South India[?]
  • Evangelical Church in Germany
  • United Church of Canada
  • United Church of Christ[?]
  • Uniting Church in Australia

Non-Trinitarian

• Arians
• Iglesia ni Cristo[?]
• Jehovah's Witnesses
• Molokan
• Latter-day Saints
  • Church of Jesus Christ of Latter-day Saints
  • Church of Jesus Christ of Latter Day Saints (Strangite)[?]
  • Reformed Church of Jesus Christ of Latter-day Saints[?]
  • Fundamentalist Church of Jesus Christ of Latter-day Saints[?]
  • Pentecostal Church of Jesus Christ of Latter-day Saints[?]
  • Restoration Church of Jesus Christ of Latter-day Saints[?]
  • Restored Church of Jesus Christ[?]
  • True and Living Church of Jesus Christ of Saints of the Last Days[?]
• Unification Church
• Doukhobors[?]
• Unitarians

New Thought Churches

• Divine Science[?]
• Church of Christ, Scientist
• Religious Science[?]
• Unity Chu[?]