AOPA
| Acronym | Definition |
|---|---|
| AOPA | Aircraft Owners and Pilots Association |
| AOPA | American Orthotic and Prosthetic Association |
| AOPA | Administrative Orders and Procedures Act (India) |
| AOPA | Alberta Organic Producers Association (Canada) |
| AOPA | Agricultural Operations Practices Act |
| AOPA | Accolade of Outstanding Photographic Achievement (Wedding & Portrait Photographers International) |