OMPA
| Acronym | Definition |
|---|---|
| OMPA | Outer Membrane Protein A |
| OMPA | Oklahoma Municipal Power Authority (Edmond, OK) |
| OMPA | Oregon Media Production Association (est. 1982) |
| OMPA | Octamethyl Pyrophosphoramide |
| OMPA | Ohio Maple Producers Association (Wooster, OH) |
| OMPA | Occupational Medicine Performance Assessment |