| Abbreviation | Definition |
|---|---|
| APE | American Protestant Ethic |
| APEST | Apostle Prophet Evangelist Shepherd Teacher |
| APHC | Asia Pacific Healthy Church |
| APM | Annual Parish Meeting |
| APML | All Pakistan Muslim League |
| APOL | America Praying On Line |
| APPLE | Adventurous People Promoting Life Enrichment |
| APRIL | Atonement, Pure Religion, Integrity, And Love |
| APTIKIS | Asosiasi Perguruan Tinggi Islam Swasta |
| APTK | A Promise To Keep |
| APTS | Asia Pacific Theological Seminary |
| AQCB | Assembly of Quebec Catholic Bishops |
| ARB | Athiest Religion Beliefs |
| ARBCA | Association of Reformed Baptist Churches of America |
| ARC | Action, Reflection, and Celebration |
| ARC | Affinity, Reality, Communication |
| ARCW | American Religious Civil War |
| ARDA | American Religion Data Archive |
| ARG | Abusive Religious Group |
| ARI | Aslag Research Institute |