| Abbreviation | Definition |
|---|---|
| RLR | Reinforcement Learning Repository |
| RLU | Real Life University |
| RMA | Really Messed Assignment |
| RMB | Rockford Master's Commission |
| RMC | Royal Military College |
| RMH | Rocky Mountain Herbarium Floristic Research, University of Wyoming |
| RMIT | Royal Melbourne Institute of Technology |
| RML | Rob's Multimedia Laboratory |
| RMM | Rocky Mountain Mathematica |
| RMO | Records Management Office |
| RMP | Records Management Program |
| RMSA | Rehabilitaton Medicine Students Association |
| RMTU | Ramon Magsaysay Technological University |
| RMU | Robert Morris University |
| RN | Room Number |
| RNE | Registered Nurse Exam |
| RNF | Research Network Forum |
| RNI | Redleaf National Institute |
| RNI | Redwood Neuroscience Institute |
| RNI | Research Network Incorporated |