| MSEA | Magadh Stock Exchange Association 
| Others |
| MSEA | Maine State Employees Association
| Others |
| MSEA | Maintenance des Systemes Embarques de l'Automobile
| Others |
| MSEA | Maplestory South East Asia
| Others |
| MSEA | Maryland State Education Association
| Others |
| MSEA | Matanuska Susitna Education Association
| Others |
| MSEA | Material Science and Engineering A
| Others |
| MSEA | Materials Science and Engineering A
| Others |
| MSEA | Materials Science and Engineering Association
| Others |
| MSEA | Med School Early Acceptance
| Others |
| MSEA | Metabolite Set Enrichment Analysis
| Others |
| MSEA | Metasys Systems Extended Architecture
| Others |
| MSEA | Michigan State Employees Association
| Others |
| MSEA | Microsoft Excel Advanced
| Others |
| MSEA | Mission Society of
| Others |
| MSEA | Mission Society of Enrolled Agents
| Others |
| MSEA | Mississippi State Equine Association
| Others |
| MSEA | Mountain States Energy Alliance
| Others |
| MSEA | Mountain States Eventing Association
| Others |
| MSEA | Multilevel Successive Elimination Algorithm
| Others |
| MSEA | Mutation Set Enrichment Analysis
| Others |