This List of National Council of Churches members and observers mentions the individual communions which are members or observers of the National Council of the Churches of Christ in the USA.
| African Methodist Episcopal Church | Methodist (Historically Black) | |
| African Methodist Episcopal Zion Church | Methodist (Historically Black) | |
| Alliance of Baptists | Baptist | |
| American Baptist Churches USA | Baptist | |
| Diocese of the Armenian Church of America | Oriental Orthodox | |
| Assyrian Church of the East | Church of the East | |
| Christian Church (Disciples of Christ) | Restorationist | |
| Christian Methodist Episcopal Church | Methodist (Historically Black) | |
| Church of the Brethren | Anabaptist | |
| Community of Christ | Latter Day Saints | |
| Coptic Orthodox Church in North America | Oriental Orthodox | |
| Ecumenical Catholic Communion | Independent Catholic | |
| Episcopal Church in the United States of America | Anglican | |
| Evangelical Lutheran Church in America | Lutheran | |
| Greek Orthodox Archdiocese of America | Eastern Orthodox | |
| Hungarian Reformed Church in America | Reformed | |
| International Council of Community Churches | Community Church movement | |
| Korean Presbyterian Church Abroad | Reformed (Presbyterian) | |
| Malankara Orthodox Syrian Church, American diocese | Oriental Orthodox | |
| Mar Thoma Church | Reformed | |
| Moravian Church in America | Moravian | |
| National Baptist Convention, USA, Inc. | Baptist (Historically Black) | |
| Orthodox Church in America | Eastern Orthodox | |
| Patriarchal Parishes of the Russian Orthodox Church in the USA | Eastern Orthodox | |
| Polish National Catholic Church | Catholic (Old Catholic) | |
| Presbyterian Church (USA) | Reformed (Presbyterian) | |
| Progressive National Baptist Convention, Inc. | Baptist (Historically Black) | |
| Reformed Church in America | Reformed | |
| Friends United Meeting | Quaker | |
| Philadelphia Yearly Meeting of the Religious Society of Friends | Quaker | |
| Serbian Orthodox Church in the USA and Canada | Eastern Orthodox | |
| Swedenborgian Church of North America | Swedenborgian | |
| Syriac Orthodox Church of Antioch, archdiocese of the Eastern U.S.A. | Oriental Orthodox | |
| Ukrainian Orthodox Church of the USA | Eastern Orthodox | |
| United Church of Christ | Reformed (Congregationalist) | |
| United Methodist Church | Methodist |