| WASO | West Australian Symphony Orchestra | 西澳大利亚交响乐团 |
| WASO | WWMCCS ADP Security Officer | WWMCCS ADP安全员 |
| WASO | Washington Support Office (US National Park Service) | 华盛顿支持办公室（美国国家公园管理局） |
| WASO | Wake-time After Sleep Onset | 睡眠开始后的唤醒时间 |
| WASO | Wisconsin Arts Service Organizations | 威斯康星州艺术服务组织 |