| MEMSA | Mining Electrical Maintenance Safety Association 
| Others |
| MEMSA | Minnesota Emergency Medical Service Association
| Others |
| MEMSA | Minnesota Emergency Medical Services Association
| Others |
| MEMSA | Missouri Emergency Medical Services Association
| Others |
| MEMSA | Modular Evaluation Method for Subsurface Activities
| Others |
| MEMSA | Modular Evaluation Method Subsurface Activities
| Others |
| MEMSA | Myoclonic Epilepsy Myopathy Sensory Ataxia
| Others |