| Acronym | Definition |
|---|
| MRTA➣Movimiento Revolucionario Túpac Amaru (Tupac Amaru Revolutionary Movement, Peru) |
| MRTA➣Mortgage Reducing Term Assurance |
| MRTA➣Mass Rapid Transit Authority |
| MRTA➣Marketable Record Title Act |
| MRTA➣Metropolitan Rapid Transit Authority (Bangkok, Thailand) |
| MRTA➣Motorcycle Rider Training Association |
| MRTA➣Multi Role Transport Aircraft |
| MRTA➣Manitoba Recreational Trails Association (Canada) |
| MRTA➣Montachusett Regional Transit Authority |
| MRTA➣Multi-Robot Task Allocation |
| MRTA➣Metro Rail Transit Authority |
| MRTA➣Missouri Retired Teachers Association |
| MRTA➣Magnetic Resonance Tomographic Angiography |
| MRTA➣Maryland Retired Teachers Association |
| MRTA➣Medium-Range Tactical Aircraft |
| MRTA➣Macedon Ranges Tennis Association (Australia) |
| MRTA➣Mediated Real-Time Access |
| MRTA➣Medical Radiation Technology Act |
| MRTA➣Myanmar Rice Traders Association |
| MRTA➣Malaspina Recreation and Tourism Association (Canada) |
| MRTA➣Magistrates’ Regional Training Adviser (UK) |
| MRTA➣Meaford Range and Training Area (Canadian Forces) |
| MRTA➣Marine Repair Technician Association |
| MRTA➣mechanical resonance tissue analysis |
| MRTA➣Michigan Retired Teachers Association (formerly Michigan Retired Public School Employees Association) |
| MRTA➣Maryland Retired Troopers Association |
| MRTA➣Modernization Receiver Test Asset |
| MRTA➣Mexican Radio and Television Association |
| MRTA➣Mississippi Retired Teachers Association |