| 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) |