| Acronym | Definition |
|---|
| MBR | Member |
| MBR | Master Boot Record |
| MBR | Master Bedroom (real estate) |
| MBR | Midwest Book Review |
| MBR | Masyarakat Berpenghasilan Rendah (Indonesian: Low-Income Communities) |
| MBR | Maximum Bit Rate (computing) |
| MBR | Minimum Bounding Rectangle |
| MBR | Multiple Bit Rate |
| MBR | Mean Bit Rate |
| MBR | Mail Based Replication |
| MBR | Multi Band Resynthesis |
| MBR | Michael Blaze Roadcars |
| MBR | Maximum Bit Rate |
| MBR | Memory Boot Record |
| MBR | Membrane Bio-Reactor (waste treatment) |
| MBR | Market-Based Rate |
| MBR | Mutually Beneficial Relationship (various organizations) |
| MBR | Memory-Based Reasoning (data mining) |
| MBR | Microwave Background Radiation |
| MBR | Movimiento Bolivariano Revolucionario (Bolivarian Revolutionary Movement) |
| MBR | Memory Buffer Register |
| MBR | Master Beneficiary Record (Social Security) |
| MBR | Maya Biosphere Reserve |
| MBR | Managing Business Relationships (college course) |
| MBR | Multi-Block Read (computing) |
| MBR | Matchbook Romance (band) |
| MBR | Metal Bulletin Research |
| MBR | Minimum Bend Radius (fibre optics) |
| MBR | Multi-Band Radio |
| MBR | Master Batch Record |
| MBR | Marching Band Rehearsal (New Jersey) |
| MBR | Monthly Business Review |
| MBR | Melty Blood Re-Act (gaming) |
| MBR | Migratory Bird Refuge (US FWS) |
| MBR | Main Battle Rifle |
| MBR | Mars Balloon Relay |
| MBR | Mishandled Baggage Rate (airline cost) |
| MBR | Municipal Budget Reform (Ukraine) |
| MBR | Minimum Boundary Rectangle |
| MBR | Master Benefit Record |
| MBR | Multi-Brand Remote (remote control device) |
| MBR | Mitochondrial Benzodiazepine Receptors (pharmacology) |
| MBR | Music Business Registry (music industry contact database) |
| MBR | Multiple Bomb Rack |
| MBR | Monthly Budget Report |
| MBR | Medical Billing & Reimbursement |
| MBR | Merit-Based Regulation |
| MBR | Maryland Business Review (magazine) |
| MBR | Mechanical Buffer Register |
| MBR | Missing Baggage Report (Airport Lost Luggage) |
| MBR | Minimal Backup Reprovisioning |
| MBR | Main Board Room |
| MBR | Member Mission Capable |
| MBR | Management Board Review |
| MBR | Mobile Binding Records |
| MBR | Minimum Balance Remaining |