OMRA
| Acronym | Definition |
|---|---|
| OMRA | Other Medicare Required Assessment (US DHHS) |
| OMRA | Oregon Motorcycle Riders Association |
| OMRA | Offshore Model Racing Association (UK model boat racing club) |
| OMRA | Outer Mission Residents Association (San Francisco, CA) |
| OMRA | Optimal Matrix Rational Approximation |
| OMRA | Oriental Medicine Research Advancement |