| Acronym | Definition |
|---|
| OMSA➣Open Manage Server Administrator |
| OMSA➣OpenManage Server Administrator (Dell computer utility) |
| OMSA➣Offshore Marine Service Association |
| OMSA➣Orders and Medals Society of America |
| OMSA➣Ontario Medical Secretaries Association |
| OMSA➣Orissa Medical Services Association (India) |
| OMSA➣Oficina Metropolitana de Servicio de Autobuses (Dominican Republic) |
| OMSA➣Ogden Museum of Southern Art |
| OMSA➣Ontario Medical Student Association |
| OMSA➣Seaman Apprentice, Opticalman Striker (Naval Rating) |
| OMSA➣Office Management Student Association (Malaysia) |
| OMSA➣Oral and Maxillofacial Surgery Assistant |