| 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 |