| Acronym | Definition |
|---|
| MSEP | Military Spouse Employment Partnership (US DoD) |
| MSEP | Main Street Electrical Parade (Disney theme parks) |
| MSEP | Midwest Student Exchange Program (Minneapolis, Minnesota) |
| MSEP | Marine Safety and Environmental Protection |
| MSEP | Ministry for Environmental Protection (Serbia) |
| MSEP | Mild Steel, Epoxy Painted |
| MSEP | MotorSports Emporium, Inc. (stock symbol) |
| MSEP | Maintenance Standardization & Evaluation Program (USAF) |
| MSEP | Music Service Evaluation Partner (UK) |
| MSEP | Meat Safety Enhancement Program (Australia) |
| MSEP | Mean Square Error of Prediction |
| MSEP | Median Nerve Somatosensory Evoked Potential |
| MSEP | Micro Separometer Rating (fuels testing) |
| MSEP | Manufacturing Systems Engineering Program |
| MSEP | Master of Science in Engineering Physics (University of Oldenburg, Germany) |
| MSEP | Matawan Student Enrichment Program (Matawan, NJ) |
| MSEP | Multiple Systems Evaluation Program |
| MSEP | Minnesota-Midwest Student Exchange Program |
| MSEP | Multi-Sensor Electronic Package Fuze |
| MSEP | Marine Sciences Education Project |
| MSEP | Market Specific Educational Programs |