| FMSS | Full-Mission Shiphandling Simulator | 全任务船舶操纵模拟器 |
| FMSS | Future Medical Shelter System | 未来医疗方舱系统 |
| FMSS | Fairfield Methodist Secondary School (Singapore) | 费尔菲尔德卫理公会中学（新加坡） |
| FMSS | Facility Maintenance Software System | 设施维护软件系统 |
| FMSS | Field Maintenance Subsystem | 现场维护子系统 |
| FMSS | Fermilab Mass Storage System | 费米实验室大容量存储系统 |
| FMSS | Five Minute Speech Sample | 五分钟语音示例 |
| FMSS | Food Marketing Support Services | 食品营销支持服务 |
| FMSS | Federal and Military Specifications and Standards | 联邦和军事规范和标准 |
| FMSS | Facility Management Software System | 设施管理软件系统 |
| FMSS | Financial Management Systems Software | 财务管理系统软件 |
| FMSS | Family Management Style Survey | 家庭管理风格调查 |
| FMSS | Financial Management Software System | 财务管理软件系统 |
| FMSS | Fermi Mass Storage System | 费米大容量存储系统 |
| FMSS | Fly-away Message Switch System | 飞行信息交换系统 |
| FMSS | Fast Mode Stationary Shock | 快速模式静态冲击 |
| FMSS | Field Medical Surveillance System | 现场医疗监测系统 |
| FMSS | Frequency Modulation Subcarrier Service | 调频子载波业务 |