| Acronym | Definition |
|---|
| MRCA➣Most Recent Common Ancestor |
| MRCA➣Midwest Roofing Contractors Association |
| MRCA➣Multi-Role Combat Aircraft |
| MRCA➣Mountains Recreation and Conservation Authority (California) |
| MRCA➣Market Research Corporation of America |
| MRCA➣Member of the Royal College of Anaesthetists |
| MRCA➣Malaysian Retailer-Chains Association |
| MRCA➣Medical Refresher Courses for Afghans |
| MRCA➣Military Radio Collectors Association |
| MRCA➣Missouri Rodeo Cowboys Association |
| MRCA➣Motorcycle Riders Club Of America (website) |
| MRCA➣Medium Resolution Coverage Area |
| MRCA➣Manitoba Recreational Canoeing Association, Inc. (Canada) |
| MRCA➣Manager of Radiological Consequence Assessment (nuclear) |