| Acronym | Meaning |
| MRDA | Manager Radiological Dose Assessment |
| MRDA | Military Recommended Dietary Allowance |
| MRDA | Mineral Resources Development Act (Tasmania, Australia) |
| MRDA | Minerals Regulation and Development Act |
| MRDA | Ministry Reporting Database Application |
| MRDA | Mission Requirements and Definition Analysis |
| MRDA | Mission Requirements Definition and Analysis |