| APPD | Academic Practice Plan Directors 
| Others |
| APPD | Adult Probation and Parole Department
| Others |
| APPD | Air Pressure Proportional Damping
| Others |
| APPD | Amazon Prime Prime Day
| Others |
| APPD | AMEDD Personnel Proponency Directorate
| Others |
| APPD | AMEDD Personnel Proponent Directorate
| Others |
| APPD | Anarchistische Pogo Partei Deutschlands
| Others |
| APPD | Army Personnel Proponent Directorate
| Others |
| APPD | Asbury Park Police Department
| Others |
| APPD | Asia Pacific Partnership on Development
| Others |
| APPD | Association of Pain Program Directors
| Others |
| APPD | Association of Pediatric Program Directors
| Others |
| APPD | Auditory Protection and Performance Division
| Others |
| APPD | Australian Plant Pest Database
| Others |