Christianity
- Anglican Catholic Church, an Anglican church
- Anglican Church of Canada, a church of the Anglican Communion
- Anglican Consultative Council, an international body of the Anglican Communion
- Apostolic Catholic Church, a body of Catholic Protestants in the Philippines and worldwide
- Apostolic Christian Church, a church of Anabaptist origins
- Australian Christian Channel, a television channel in Australia
- Australian Christian Churches, also known as Assemblies of God in Australia (AOG)
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