| Abbreviation | Definition |
|---|---|
| ACCD | Association for Christian Character |
| ACCEC | Association Canadienne des Commissaires d'écoles Catholiques (Canadian Catholic School Trustees' Association) |
| ACCF | Assembly of Christian Churches in Fiji |
| ACCH | Albuquerque Christian Children's Home |
| ACCN | African Canadian Christian Network |
| ACCN | Apostolic Christian Church (Nazarean) |
| ACCS | Adams County Christian School |
| ACCS | American Christian College |
| ACCS | Ancient Christian Commentary on Scripture |
| ACCS | Association of Classical Christian Schools |
| ACCW | Albuquerque Council of Catholic Women |
| ACCW | Archdiocesan Council of Catholic Women |
| ACCW | Archdiocese Council of Catholic Women |
| ACCW | Ascension Catholic Council of Women |
| ACCW | Ascension Council of Catholic Women |
| ACCW | Assumption Council of Catholic Women |
| ACDF | Archive of the Congregation for the Doctrine of the Faith |
| ACDN | Arlington Christian Disaster Network |
| ACDP | African Christian Democratic Party |
| ACE | Accelerated Christian Education |