| Acronym | Definition |
|---|
| MMSA➣Mitsubishi Motor Sales of America, Inc |
| MMSA➣Malta Medical Students' Association (Malta) |
| MMSA➣Mining and Metallurgical Society of America (Boulder, CO) |
| MMSA➣Mercantile Marine Service Association |
| MMSA➣Michigan Maple Syrup Association |
| MMSA➣Manitoba Medical Students Association |
| MMSA➣Multimission Surveillance Aircraft |
| MMSA➣Minnesota Mine Safety Association (Eden Prairie, MN) |
| MMSA➣Metropolitan & Micropolitan Statistical Areas |
| MMSA➣Motion Made, Seconded, and Approved |
| MMSA➣Muhammadiyah Medical Students' Activities |