| SUO | Standard Upper Ontology | 标准上层本体 |
| SUO | Small Unit Operations | 小型机组运行 |
| SUO | Statement Under Oath | 宣誓声明 |
| SUO | Southern Oregon University (Ashland, Oregon) | 南俄勒冈大学（俄勒冈阿什兰） |
| SUO | Senior Under Officer (British military) | 高级副军官（英国军方） |
| SUO | syncope of unknown origin | 不明原因晕厥 |
| SUO | society of university otolaryngologists | 大学耳鼻喉科医师学会 |
| SUO | Standard Upper Ontology Study Group | 标准上层本体研究小组 |
| SUO | Solution User Options | 解决方案用户选项 |