| PSSD | Pseudo Spectral Spatial Domain (method) | 伪谱空域（方法） |
| PSSD | Packet Service Systems Development | 分组业务系统开发 |
| PSSD | Peripheral Specified Sensory Device | 外围指定的感官设备 |
| PSSD | Physical Security Systems Directorate | 物理安全系统局 |
| PSSD | Process Software Solutions Department | 过程软件解决方案部 |
| PSSD | Provinciale Secundaire School Diepenbeek | Diepenbeek省中学 |
| PSSD | Position Sensitive Silicon Detector | 位置敏感硅探测器 |
| PSSD | Product Service Systems Design | 产品服务系统设计 |
| PSSD | Production Section Scheduling Designator (DoD) | 生产段调度指示符（DoD） |
| PSSD | Post SSRI Sexual Dysfunction | SSRI后性功能障碍 |
| PSSD | Philippine Strategy for Sustainable Development | 菲律宾可持续发展战略 |
| PSSD | Potential Significant Safety Discrepancies | 潜在的重大安全差异 |