| MESP | Marine and Estuarine Science Program 
| Others |
| MESP | Marine Ecosystem Services Partnership
| Others |
| MESP | Market Entry Strategy Project
| Others |
| MESP | Maryland Energy Sector Partnership
| Others |
| MESP | Masanga Education Sponsorship Project
| Others |
| MESP | Medical Education Scholars Program
| Others |
| MESP | Michael Epstein Sports Productions
| Others |
| MESP | Michigan Education Savings Plan
| Others |
| MESP | Michigan Education Savings Program
| Others |
| MESP | Middle East Studies Program
| Others |
| MESP | Minimum Ethanol Selling Price
| Others |
| MESP | Ministry of Environment and Spatial Planning
| Others |
| MESP | Multilateral Enrichment Sanctuary Project
| Others |
| MESP | Multinational Enrichment Sanctuary Project
| Others |
| MESP | Muncie Electronic Spreader Package
| Others |
| MESP | My Energy Start Page
| Others |