| IPSS | International Packet Switched Service | 国际分组交换业务 |
| IPSS | Image Processing Subsystem | 图像处理子系统 |
| IPSS | Improved Pesticide Spray System | 改进的杀虫剂喷洒系统 |
| IPSS | International Prostate Symptom Score | 国际前列腺症状评分 |
| IPSS | International Pilot Study of Schizophrenia | 精神分裂症的国际试点研究 |
| IPSS | Inferior Petrosal Sinus Sampling | 下岩窦取样 |
| IPSS | International Packet Switching System (ITU-T) | 国际分组交换系统（ITU-T） |
| IPSS | Integrated Process Support System | 综合过程支持系统 |
| IPSS | Instituição Particular de Solidariedade Social (Portugese: Private Social Solidarity Institution) | Instituição Particular de Solidariedade Social (Portugese: Private Social Solidarity Institution) |
| IPSS | In-Plane Shear Strength | 平面内抗剪强度 |
| IPSS | Internet Protocol Security Services (Sprint) | Internet协议安全服务（Sprint） |
| IPSS | Initial Preplanned Supply Support | 预先计划初始供给支援 |
| IPSS | Integrated Patent Search System | 集成专利检索系统 |
| IPSS | International Prognostic Scoring System | 国际预后积分系统 |
| IPSS | Internet Protocol Service Switch (Spring Tides) | 互联网协议服务交换机（大潮） |
| IPSS | Instituto Peruano De Seguridad Social | 社会科学研究所 |
| IPSS | Initial Pre-Planned Supply Support | 初始预计划供应支持 |