| Abbreviation | Definition |
|---|---|
| MEO | Marine Engineering Officer |
| MEO | Military Equal Opportunity |
| MEO | Military Estate Officer |
| MEO | Most Effective Officer |
| MEOW | Multi-mode Electro-Optic Weapon |
| MEP | Master Evaluation Plan |
| MEP | Mission Essential Power |
| MEP | Mobile Electric Power |
| MEP | Multiple Entry Points |
| MEPC | Military Entrance Processing Command |
| MEPCOM | Military Entrance Processing Command |
| MEPD | Medical Evacuation Proponency Directorate |
| MEPES | Medical Planning and Execution System |
| MEPRS | Military Entrance Processing and Reporting System |
| MEPS | Military Enlistment Processing Station |
| MEPS | Military Enterance Processing Station |
| MEPS | Military Entrance Processing Station |
| MEPS | Military Entrance Processing Stations |
| MEPS | Military Entry Processing Station |
| MEPS | Military Eye Protection System |