| PAPI | Precision Approach Path Indicator | 精密进近航道指示器 |
| PAPI | polyaryl polymethylene isocyanate | 多苯基多亚甲基多异氰酸酯 |
| PAPI | polymethylene polyphenylisocyanate | 聚亚甲基聚苯异氰酸酯 |
| PAPI | Phonetics and Phonology in Iberia (International Conference) | 伊比利亚语音学和语音学（国际会议） |
| PAPI | Point Of Access To Providers Of Information | 信息提供者的访问点 |
| PAPI | Paper and Pencil Instrument | 纸和铅笔仪器 |
| PAPI | PC Voice Application Programming Interface | PC语音应用程序编程接口 |
| PAPI | Polymethylene Polyphenyl Isocyanate | 聚亚甲基聚苯异氰酸酯 |
| PAPI | Personal And Performance Information | 个人和绩效信息 |
| PAPI | Provisioning Application Programming Interface (UP.link) | 提供应用程序编程接口（UP.link） |
| PAPI | Public And Private Information | 公共和私人信息 |
| PAPI | Precise Automatic Photogrammetric Intervalometer | 精密自动摄影测量间隔测量仪 |
| PAPI | Perception and Preference Inventory (psychology) | 感知和偏好量表（心理学） |