| TISS | Tata Institute of Social Sciences (India) | 塔塔社会科学研究所（印度） |
| TISS | Terminal-Independent Support System | 终端独立支持系统 |
| TISS | Thermal Imaging Sensor System | 热成像传感器系统 |
| TISS | Tata Institute of Social Sciences | 塔塔社会科学研究所 |
| TISS | Therapeutic Intervention Scoring System | 治疗干预评分系统 |
| TISS | TEWS Intermediate Support System | TEWS中间支持系统 |
| TISS | Teaching In Secondary Schools | 中学教学 |
| TISS | Tactical Information Sharing System | 战术信息共享系统 |
| TISS | Timber Industry Superannuation Scheme | 木材行业养老金计划 |
| TISS | Travel Information Software Systems | 旅行信息软件系统 |
| TISS | The Institute for Security Studies | 安全研究所 |
| TISS | Triangle Institute for Security Studies | 三角安全研究所 |
| TISS | Takakei Information System Society | 高木信息系统学会 |
| TISS | TecnologÍas de la InformaciÓn San Sebastian | TecnologÍas de la InformaciÓn San Sebastian |
| TISS | Teacher Instructional Support Specialist | 教师教学支持专家 |
| TISS | Telecommunications and Automated Information Systems Security | 电信和自动化信息系统安全 |
| TISS | Tester, Intermediate Support System | 中间支持系统测试仪 |