| Acronym | Definition |
|---|
| AMSA➣American Moving and Storage Association |
| AMSA➣Australian Maritime Safety Authority |
| AMSA➣American Medical Student Association |
| AMSA➣Association of Metropolitan Sewerage Agencies |
| AMSA➣Australian Marine Sciences Association |
| AMSA➣Australian Medical Students Association |
| AMSA➣American Meat Science Association |
| AMSA➣Austin MotoSports Association (Texas) |
| AMSA➣Army Medical Surveillance Activity |
| AMSA➣Advanced Manned Strategic Aircraft |
| AMSA➣Advanced Math and Science Academy (Marlborough, MA charter school) |
| AMSA➣Area Maintenance Support Activity (US Army) |
| AMSA➣American Medallic Sculpture Association |
| AMSA➣Autoridad para el Manejo Sustentable de la Cuenca y del Lago de Amatitlán (Guatemala) |
| AMSA➣Army Maintenance Support Activity |
| AMSA➣Ahmadiyya Muslim Student Association |
| AMSA➣Armored Motor Services of America |
| AMSA➣Antimicrobial Specialists and Associates, Inc. |
| AMSA➣Alberta Metallic Silhouette Association |
| AMSA➣Assateague Mobile Sportfishermen's Association |
| AMSA➣Allied Military Security Agency |
| AMSA➣Al-Azhar Medical Student Association (Cairo, Egypt) |
| AMSA➣Army Materiel Support Activity |
| AMSA➣Amicale de Moto et Scooter Anciens (French: Friendly Motorcycle and Scooter Veterans) |