| PAAS | Pacification Attitude Analysis System | 安抚态度分析系统 |
| PAAS | Platform-as-a-Service | 平台即服务 |
| PAAS | Passive Active All Weather System | 被动-主动全天候系统 |
| PAAS | Pan American Silver Corporation | 泛美白银公司 |
| PAAS | Pharmacy Audit Assistance Service | 药房审计协助服务 |
| PAAS | Positive Action Assessment Strategy | 积极行动评估策略 |