| Abbreviation | Definition |
|---|---|
| APE | Athletic Performance Enhancement |
| APF | Average Points For |
| APHA | African Professional Hunters Association |
| APHA | Australian Palomino Horse Association |
| APHB | Alternity Players' HandBook |
| API | Athletes Performance Institute |
| APIA | Association Polisportive Italo Australian |
| APIS | Ace Production In Sports |
| APM | Arm Power Management |
| APOC | Awareness, Participation, Opportunity, and Coaching |
| APPA | American Paintball Players Association |
| APPL | Avalon Paintball Players League |
| APPM | Andy Priaulx Performance Management |
| APR | Arizona Pylon Racing |
| APR | Average Penalty Received |
| APRA | American Professional Rodeo Association |
| APRA | Arizona Pylon Racing Association |
| APS | Air Precision Shooting |
| APSG | Association Phocéenne des Sports de Glace |
| APSM | Albert Park South Melbourne |