| UPN | Universal Personal Number | 個人隨身碼 |
| UPN | Uruapan, Michoacan, Mexico (Airport Code) | 墨西哥米却肯州乌拉潘（机场代码） |
| UPN | Unique Property Number | 唯一属性编号 |
| UPN | Uruapan, Mexico | 乌拉圭，墨西哥 |
| UPN | Used Parts Network | 二手零件网络 |
| UPN | Under Paid Negroes | 工资不足的黑人 |
| UPN | The Un Popular Network | 不受欢迎的网络 |
| UPN | U Peoples Network | U人民网 |
| UPN | Ubiquitous Public Network | 无处不在的公共网络 |
| UPN | National patriotic Front | 全国爱国阵线 |
| UPN | Under Pressure from Nincompoops | 在Nincompoops的压力下 |
| UPN | Unique Pupil Number (UK student ID system) | 唯一学生编号（英国学生身份证系统） |
| UPN | Unique Project Number | 唯一项目编号 |
| UPN | United Punk Nation | 朋克联合国 |
| UPN | United Pallet Network (UK) Ltd | 联合托盘网络（英国）有限公司 |
| UPN | UniÓn del Pueblo Navarro (Navarrese People Union) | UniÓn del Pueblo Navarro (Navarrese People Union) |
| UPN | UniÓn de Periodistas de Nicaragua (Spanish: Union of Journalists of Nicaragua) | UniÓn de Periodistas de Nicaragua (Spanish: Union of Journalists of Nicaragua) |
| UPN | United Pallet Network (UK) | 联合托盘网络（英国） |
| UPN | Universal Product Number (product number for medical & surgical products; HIBCC) | 通用产品数量(产品数量、医疗及手术产品HIBCC) |
| UPN | User Principal Name (Microsoft Windows 2000) | 用户主体名称（Microsoft Windows 2000） |
| UPN | Umgekehrte Polnische Notation (German: Reversed Polish Notation) | Umgekehrte Polnische符号（德语：反向波兰符号） |
| UPN | United Paramount Network | 联合派拉蒙网络 |
| UPN | Union PatriÓtico Nacional (National Patriotic Union/Front; political party, Guatemala) | Union PatriÓtico Nacional (National Patriotic Union/Front; political party, Guatemala) |
| UPN | Uniform Product Number | 统一产品编号 |
| UPN | Universidad PedagÓgica Nacional | Universidad PedagÓgica Nacional |
| UPN | uremic polyneuropathy | 尿毒症性多发性神经病 |
| UPN | unique patient number | 唯一患者编号 |
| UPN | UniÓn del Pueblo Navarro | UniÓn del Pueblo Navarro |
| UPN | User Principal Name | 用户主体名称 |