| TDSS | Tactical Decision Support System (formerly Contact Management System) | 战术决策支持系统（以前的联系人管理系统） |
| TDSS | Timiskaming District Secondary School (New Liskeard, ON, Canada) | 蒂米斯卡明区中学（加拿大安大略省新利斯凯） |
| TDSS | Technical Data Storage System | 技术数据存储系统 |
| TDSS | TRADOC Decision Support System | TRADOC决策支持系统 |
| TDSS | Telemetry Data Signal Simulator | 遥测数据信号模拟器 |
| TDSS | Training Devices, Simulators and Simulations | 训练设备、模拟器和模拟 |
| TDSS | Television Data Systems Subcommittee | 电视数据系统小组委员会 |
| TDSS | Technology, Development, and Support Services | 技术、开发和支持服务 |
| TDSS | Traffic Data Studies System | 交通数据研究系统 |
| TDSS | Theater Decision Support System | 战区决策支持系统 |
| TDSS | Thermally-Dried Sewage Sludge | 热干燥污水污泥 |
| TDSS | Ten Dimension Super Symmetry | 十维超对称 |
| TDSS | Tactical Data Simulator System | 战术数据模拟器系统 |
| TDSS | Time-Division Space Switch | 时分空间开关 |