| Abbreviation | Definition |
|---|---|
| MERC | Mobility Enhancing Resource Component |
| MERCH | MERCHandise |
| MES | Machine Extreme Service |
| MES | Machined Extreme Service |
| MES | Miniature Edison Screw |
| MESA | MOLLE Enhanced South African assault vest |
| MESG | Maximum Experimental Safe Gap |
| MESSR | Multispectral Electronic Self Scanning Radiometer |
| MEWP | Meziere Electric Water Pump |
| MEWP-OHK | Mobile Elevated Work Platform Operator's Harness Kit |
| MF | Made From .... |
| MF | Magic Fingers |
| MF&P | Materials, Finishes, and Processes |
| MF(P) | MicroFische (Positive) |
| MFGB | Midget Fritted Glass Bubbler |
| MFJ | Mighty Fine Junk |
| MFO | Marine Fuel Oil |
| MFP | Main Feed Pump |
| MFP | My Fitness Pal |
| MFPF | Metal Fin Pipe Foundation |