| Abbreviation | Definition |
|---|---|
| MEAP | Metaphysics Exploration And Protection |
| MF | Mouka Foam |
| MFPA | Mouth and Foot Painters Association |
| MFPA | Mouth and Foot Painting Artists |
| MFPS | Munroe Falls Paranormal Society |
| MGA | Model General Assembly |
| MGB | Mass Group Buff |
| MGD | MunGyoDance |
| MGM | Mammoth Giant Maze |
| MHG | Mighty Hat Guys |
| MHT | Model Helicopter Technique |
| MHU | ModelHorses Unlimited |
| MIB | Mint In Box |
| MIJ | Mensa In Japan |
| MIMB | Mint In Mint Box |
| MIMP | Mint In Mint Package |
| MISB | Mint In Sealed Box |
| MISK | Minimal Impact Sea Kayaking |
| MIY | Make It Yourself |
| MJA | Midstates Jeepster Association |