| Abbreviation | Definition |
|---|---|
| RMM | Remote Maintenance Monitoring |
| RMMS | Remote Maintenance Monitoring System |
| RMMS | Routine Maintainance Management System |
| RMMV | Remote Multi Mission Vehicle |
| RMP | Risk Management Program |
| RMP | Rotorcraft Master Plan |
| RMS | Railway Mail Service |
| RMS | Remote Monitoring System |
| RMS | Roads and Maritime Services (NSW, Australia) (replaced RTA 2011?) |
| RMS | Royal Mail Ship |
| RMSV | Rod Millen Special Vehicles |
| RMTN | Rural Medical Transportation Network |
| RMTR | Radioactive Material Transportation Regulations |
| RMV | Recreational Motor Vehicle |
| RMW | Really Mad Woman |
| RN | Road Network |
| RN | Routing Number |
| RNAV | Remote Area Navigation |
| RNC | Raster Navigational Chart |
| RNC | Raster Navigational Charts |