| TSSA | Transport Salaried Staffs Association | 运输受薪员工协会 |
| TSSA | Tennessee State Soccer Association | 田纳西州足球协会 |
| TSSA | Technical Safety Standards Association | 技术安全标准协会 |
| TSSA | Teacher Student Sex Association | 师生性别协会 |
| TSSA | Technology Standards for School Administrators | 学校管理人员技术标准 |
| TSSA | Technical Standards and Safety Authority (Canada) | 技术标准和安全局（加拿大） |
| TSSA | Technical Standards Safety Authority | 技术标准安全局 |
| TSSA | TriMedia Software Streaming Architecture | TriMedia软件流架构 |
| TSSA | Total Ship Survivability Assessment | 船舶总体生存能力评估 |
| TSSA | Training Systems Support Activity | 培训系统支持活动 |
| TSSA | tumor-specific(cell)surface antigen | 肿瘤特异性（细胞）表面抗原 |
| TSSA | Tessa Complete Health Care | Tessa完全保健 |
| TSSA | Trusted System Software Architecture | 可信系统软件体系结构 |