| SMOS | Semiconductor Memory Operating System | 半导体存储操作系统 |
| SMOS | Secondary Military Occupational Specialty | 二级军事职业专业 |
| SMOS | Singapore Mathematical Olympiad Senior (Singapore) | 新加坡高级数学奥林匹克（新加坡） |
| SMOS | Soil Moisture and Ocean Salinity Mission (ESA Earth Explorer Mission) | 土壤湿度和海洋盐度任务（欧空局地球探测任务） |
| SMOS | Send Messages Over Sms | 通过Sms发送消息 |
| SMOS | Summary of Meteorological Observations, Surface | 气象观测总结，地面 |
| SMOS | Surface Meteorological Observation System | 地面气象观测系统 |