| PPSA | Pan Pacific Suzuki Association 
| Others |
| PPsA | Panellenios Psychologikos Syllogos
| Others |
| PPsA | Panhellenic Psychological Association
| Others |
| PPSA | Peninsula Purchasing and Supply Alliance
| Others |
| PPSA | Personal Property Securities Act
| Others |
| PPSA | Personal Property Security Act
| Others |
| PPSA | Philippines Partnership for Sustainable Agriculture
| Others |
| PPSA | Phonetic and Phonological Systems Analysis
| Others |
| PPSA | Physician Payment Sunshine Act
| Others |
| PPSA | Physicians Payment Sunshine Act (proposed)
| Others |
| PPSA | Pigging Products and Services Association
| Others |
| PPSA | Polkinghorne Palace Student Association
| Others |
| PPSA | POSOCO Power System Awards
| Others |
| PPSA | Prairie Political Science Association
| Others |
| PPSA | Preshute Primary School Association
| Others |
| PPSA | Professional Pharmacy Student Alliance
| Others |
| PPSA | Propulsion and Power Systems Alliance
| Others |
| PPSA | Pulp and Paper Safety Association
| Others |