| PPAI | Parallel Processing for Artificial Intelligence 
| Others |
| PPAI | Point of Purchase Advertising Institute
| Others |
| PPAI | Post Partum Anoestrus Interval
| Others |
| PPAI | Practice Performance Assessment and Improvement
| Others |
| PPAI | Predictability Predictions and Applications Interface
| Others |
| PPAI | Professional Patient Advocate Institute
| Others |
| PPAI | Program Penjualan Aset Investasi
| Others |
| PPAI | Promotional Products Association International
| Others |
| PPAI | Public Policy Action Institute
| Others |
| PPAI | Public Private Adoption Initiative
| Others |