| Acronym | Definition |
|---|
| MRA | Magnetic Resonance Angiography |
| MRA | Mutual Recognition Arrangement |
| MRA | Mutual Recognition Agreement |
| MRA | Market Research Analyst |
| MRA | Mountain Rescue Association |
| MRA | Mauritius Revenue Authority (Mauritius) |
| MRA | Men's Rights Activist |
| MRA | Malawi Revenue Authority |
| MRA | Moral Rearmament |
| MRA | Mineralocorticoid Receptor Antagonist (heart failure treatment) |
| MRA | Moderated Regression Analysis (economics) |
| MRA | Minimum Retirement Age |
| MRA | Metal Roofing Alliance |
| MRA | Media Rights Agenda (Nigeria) |
| MRA | Marketing Research Association |
| MRA | Message Records and Actions |
| MRA | Mazda Research and Development of North America |
| MRA | Mould Release Agent |
| MRA | Multi-Room Audio (amplifiers) |
| MRA | Master Repurchase Agreement |
| MRA | Massachusetts Restaurant Association |
| MRA | Michigan Retailers Association |
| MRA | Michigan Restaurant Association |
| MRA | Multiple Regression Analysis |
| MRA | Mandatory Retirement Age |
| MRA | Moving Right Along |
| MRA | Multi-Resolution Analysis |
| MRA | Model Railway Association (various locations) |
| MRA | Mental Retardation Authority |
| MRA | Men's Rights Agency |
| MRA | Master of Research Administration (various schools) |
| MRA | Medical Records Assistant |
| MRA | Migration and Refugee Assistance |
| MRA | Minimum Reception Altitude |
| MRA | Material Return Authorization |
| MRA | Marine Resources Assessment (US Navy) |
| MRA | Mail Retrieval Agent (internet email) |
| MRA | Market Risk Amendment |
| MRA | Mahan Rykiel Associates (various locations) |
| MRA | Memphis Restaurant Association (Memphis, TN) |
| MRA | Master Residential Appraiser |
| MRA | Mission Risk Assessment |
| MRA | Maritime Reconnaissance Aircraft |
| MRA | Mitsubishi Rayon America (New York, NY) |
| MRA | Maneuver Rights Area |
| MRA | Market Rate Account (saving mechanism) |
| MRA | Munitions Response Area (US DoD) |
| MRA | Masters Rowing Association |
| MRA | Mutant Registration Act (X-Men) |
| MRA | Magneto-Resistive Asymmetry (hard disk drives) |
| MRA | Minimum Repayment Amount |
| MRA | Mission Ready Airmen (US Air Force) |
| MRA | Malaysia Retailers Association |
| MRA | Monthly Rental Assistance (US FEMA) |
| MRA | Moped Riders Association (bike club) |
| MRA | Mulholland Racing Association |
| MRA | MEFPAK (Manpower & Equipment Force Packaging) Responsible Agency (US Air Force) |
| MRA | Mutual Responsibility Agreement |
| MRA | Miniature Radar Altimeter |
| MRA | Miscellaneous Relocation Allowance (various organizations) |
| MRA | Material Receipt Acknowledgement (US DoD) |
| MRA | Mutually Restricted Access |
| MRA | Maximum Reimbursement Allowed (funding cap) |
| MRA | Military Research Associate(s) |
| MRA | Manual of Regulatory Audits |
| MRA | Mission Readiness Airlift |
| MRA | Matter Requiring Attention |
| MRA | Message Release Authority |
| MRA | Maximum Repair Allowance |
| MRA | Multiple Relationship Analysis |
| MRA | Mean Reference Axis |
| MRA | Mean Acoustic Response Axis |
| MRA | Machine Records Activity |
| MRA | Modernization Readiness Assessment |
| MRA | Maintenance and Repair Area |
| MRA | Minimum Reserve Authorization |
| MRA | Milestone Review and Approval |
| MRA | Main/Maximum Response Axis |
| MRA | Manufacturer's Resale Agreement |
| MRA | Minimal Reactance Antenna |
| MRA | Message Review Authority |
| MRA | Module Reservoir Assembly (automotive fuel system) |
| MRA | Mission Ready & Available |
| MRA | Mixture Reduction Algorithm |
| MRA | Metro Rating Area |
| MRA | Model Range of Accuracy |
| MRA | Matrix-Rational Approximation Algorithm |
| MRA | Membrane Reflector Antenna |