| PAX | Penny Arcade Expo | Penny Arcade博览会 |
| PAX | Program of Academic Exchange | 学术交流计划 |
| PAX | Phatom Auto X | Phatom自动X |
| PAX | Paxson Communications Corporation | 帕克森通信公司 |
| PAX | PAX Analytics, Inc. | PAX分析公司。 |
| PAX | Per Annum Exchange | 每年汇率 |
| PAX | Potassium Amyl Xanthate | 戊基黄原酸钾 |
| PAX | Paired Box Gene | 配对盒基因 |
| PAX | Profiling Agent for Exchange | Exchange分析代理 |
| PAX | Peace | 和平 |
| PAX | Per Annum Exclusive | 每年不含 |
| PAX | Poly Aluminium Chloride | 聚氯化铝 |
| PAX | Pdf As Xml | Pdf作为Xml |
| PAX | Programming, Administration and Execution System (US Army) | 编程、管理和执行系统（美国陆军） |
| PAX | Passengers | 乘客 |
| PAX | Paxon (Network) | Paxon（网络） |
| PAX | Penny-Arcade Exposition (video game convention) | Penny Arcade博览会（电子游戏大会） |
| PAX | Patuxent River Naval Air Station (Maryland) | Patuxent River海军航空站（马里兰州） |
| PAX | Professional Autocrossers | 专业自动交叉车 |
| PAX | Picatinny Arsenal Explosive | 皮卡汀尼兵工厂炸药 |
| PAX | Portable Archive Exchange | 便携式存档交换 |
| PAX | Private Automatic Exchange | 专用自动交换机 |
| PAX | Passenger Assistance Required (VRE) | 需要乘客协助（VRE） |