| IPOS | Ideal Presentation Online System | 理想的在线演示系统 |
| IPOS | International Psycho-Oncology Society | 国际心理肿瘤学会 |
| IPOS | Internet Protocol Over Satellite | 卫星互联网协议 |
| IPOS | Indvidual Program of Study (UK education) | 个人学习计划（英国教育） |
| IPOS | Internet Protocol Over SONET | SONET上的Internet协议 |
| IPOS | Intellectual Property Office of Singapore | 新加坡知识产权局 |
| IPOS | Indian Postal Service | 印度邮政服务 |
| IPOS | Input Process Output Storage | 输入过程输出存储 |
| IPOS | Initial Public Offering Summary | 首次公开发行摘要 |
| IPOS | Idiots Purchasing Overpriced Stocks | 白痴购买高价股票 |
| IPOS | Input, Process, Output, Storage | 输入、过程、输出、存储 |