| Rank | Abbreviation | Meaning |
|---|
| ***** | MMSA | Male Male Spanking Archive
| |
| *** | MMSA | Mitsubishi Motors Sales of America
| |
| *** | MMSA | Methanol Market Services Asia
| |
| *** | MMSA | Materials Methods Standards Association
| |
| *** | MMSA | Medicare Medical Savings Account
| |
| ** | MMSA | Mitsubishi Motor Sales of America, Inc
| |
| ** | MMSA | Material Management System Assessment
| |
| * | MMSA | Malta Medical Students' Association
| |
| * | MMSA | Metropolitan & Micropolitan Statistical Areas
| |
| * | MMSA | MILITARY MEDICAL STUDENT ASSOCIATION
| |
| * | MMSA | Mercantile Marine Service Association
| |
| * | MMSA | Mala Mala South Africa
| |
| * | MMSA | Money Market Savings Account
| |
| * | MMSA | Manitoba Medical Students Association
| |
| * | MMSA | Mining and Metallurgical Society of America
| |
| * | MMSA | Motion Made, Seconded, and Approved
| |
| * | MMSA | Multimission Surveillance Aircraft
| |
| * | MMSA | Mississippi Medical and Surgical Association
| |
| * | MMSA | Meher Montessori School Altade
| |
| * | MMSA | Multi Mission Surveillance Aircraft
| |
| * | MMSA | Michigan Math and Science Academy
| |
| * | MMSA | Military Medical Supply Agency
| |
| * | MMSA | Man Machine Systems Analysis
| |
| * | MMSA | Maine Mathematics Science Alliance
| |
| * | MMSA | Macintosh Mosaic Software Architecture
| |