| Abbreviation | Definition |
|---|---|
| RM | Returning Missionary |
| RM | Roman Missal |
| RMB | Renewed Mind Brother |
| RMC | Royal Masonic Cyclopaedia |
| RMCA | Restoration Ministries Christian Academy |
| RMCA | Reynolds Mountain Christian Academy |
| RMCA | Ridge Manor Christian Academy |
| RMCA | Rocky Mountain Christian Academy |
| RMCC | Rochester Muslim Community Circle |
| RMCC | Rocky Mountain Christian Camp |
| RMCM | Rocky Mountain Christian Ministries |
| RMI | Real Ministry Immersion |
| RMM | Relationship Management Methodology |
| RMPS | Religious Moral and Philosophical Studies |
| RMPS | Religious Moral Philosophical Studies |
| RMTC | Returned Missionary Training Center |
| RNCC | Raleigh North Christian Center |
| RNJ | Redemption New Jersey |
| RNM | Relief Network Ministries |
| RNW | Roots-N-Wisdom |