| Acronym | Definition |
|---|
| APPA➣American Public Power Association |
| APPA➣American Public Power Association (Washington, DC) |
| APPA➣American Pet Products Association (Greenwich, CT) |
| APPA➣American Probation and Parole Association |
| APPA➣Association of Higher Education Facilities Officers |
| APPA➣Antitrust Procedures and Penalties Act |
| APPA➣Association of Physical Plant Administrators |
| APPA➣Association pour la Prévention de la Pollution Atmosphérique (French: Association for the Prevention of Air Pollution) |
| APPA➣Appalachian National Scenic Trail (US National Park Service) |
| APPA➣Action for Peace through Prayer and Aid |
| APPA➣African Petroleum Producers' Association |
| APPA➣American Psychopathological Association |
| APPA➣American Professional Practice Association |
| APPA➣Antigua Planned Parenthood Association (International Planned Parenthood Federation) |
| APPA➣Alberta Professional Photographers Association (Canada) |
| APPA➣Association of Philippine Physicians in America |
| APPA➣Art in Public Places Advisory (Los Alamos, NM) |
| APPA➣Andhra Pradesh Police Academy (Andhra Pradesh State, India) |
| APPA➣American Paintball Players Association |
| APPA➣Alabama Peanut Producers Association |
| APPA➣Anti Plug Pullers Association (gaming) |
| APPA➣Arkansas Pork Producers Association |
| APPA➣Atlantic Professional Photographers Association |
| APPA➣American Power Plant Association |