OMAS
| Acronym | Definition |
|---|---|
| OMAS | Optical Media Advance Sensor |
| OMAS | Oral Mucositis Assessment Scale |
| OMAS | Official Mail Accounting System (US Postal Service) |
| OMAS | Oklahoma Marine Aquarium Society |
| OMAS | Office of Military and Aerospace Support (California) |
| OMAS | Outage Management & Analysis System |
| OMAS | Opsoclonic-Myoclonic-Ataxic Syndrome (neurology) |