| Acronym | Definition |
|---|
| MRMS | Muller Road Middle School (South Carolina) |
| MRMS | Middle River Middle School (Maryland) |
| MRMS | Mountain Ridge Middle School (Colorado) |
| MRMS | Maintenance Resource Management System (Navy) |
| MRMS | Marine Risk Management System (Suncor Energy) |
| MRMS | Mobile Remote Manipulator System |
| MRMS | Mississippi Residential Mortgage Specialist |
| MRMS | Millimeter-Wave Reflectivity Measurement System |
| MRMS | Mission Ready Management Solutions (Rolls-Royce) |
| MRMS | Medium Range Missile System |
| MRMS | Marvin Ridge Middle School (Waxhaw, NC) |
| MRMS | Medical Records Management System |
| MRMS | Maintenance Reporting and Management System |
| MRMS | Magothy River Middle School (Arnold, MD) |
| MRMS | Marketing Resource Management System |
| MRMS | Maintenance/Reliability Management Solutions Inc (Boiling Springs, SC) |
| MRMS | Member of the Royal Medical Society (UK) |
| MRMS | Member of the Royal Microscopical Society |
| MRMS | MTF (Military Treatment Facilities) Refill Mail Service (US DoD TRICARE) |
| MRMS | Magnet Resonance Mass Spectrometry (physics) |