| Abbreviation | Definition |
|---|---|
| MRRS | Mobile Remote Receiving System |
| MRRS | Multiple Role Radar System |
| MRS | Map Rating System |
| MRS | MASINT (Measurement And Signature INTelligence) Requirements System |
| MRS | Medical Reception Station |
| MRS | Meteorological Radar Subsystem |
| MRS | Military Reception Station |
| MRS | Mobility Requirements Study |
| MRS | Movement Report System |
| MRSA | Materiel Readiness Support Activity |
| MRSA | Materiel Readiness Support Agency |
| MRSID | Multi-resolution Seamless Image Database |
| MRSL | Master Recruitment Source List |
| MRSP | Mobility Readiness Spares Package |
| MRSR | Multi-Role Survivable Radar |
| MRSS | Mobile Range Safety System |
| MRT | Maintenance Recovery Team |
| MRT | Mini Robotics Tank |
| MRT | Missile Round Trainer |
| MRT | Movement Regulating Team |