| Acronym | Definition |
|---|
| TSB | TPS (Thermal Protection System) Sample Box |
| TSB | Technology Strategy Board (UK) |
| TSB | Transportation Safety Board of Canada |
| TSB | Technical Service Bulletin |
| TSB | Telecommunication Standardization Bureau |
| TSB | Trypticase Soy Broth |
| TSB | Trustee Savings Bank |
| TSB | Tecnologías para la Salud y el Bienestar (Spanish) |
| TSB | Technical Support Branch (National Hurricane Center) |
| TSB | Total Serum Bilirubin |
| TSB | Telecommunications Systems Bulletin |
| TSB | Tecmo Super Bowl (video game) |
| TSB | Technical Security Branch (RCMP; Canada) |
| TSB | Training Support Battalion |
| TSB | Training Support Brigade |
| TSB | Termination Status Block |
| TSB | Transportation Support Battalion |
| TSB | Traffic Safety Board |
| TSB | Toronto School of Business |
| TSB | Textiles Surveillance Body |
| TSB | Technical Services Building |
| TSB | Transportation Services Branch |
| TSB | Telecommunications Standardization Board |
| TSB | Time-Share-Börse |
| TSB | Trunk Signaling Buffer |
| TSB | Theater Staging Base |
| TSB | Thrift Savings Bank |
| TSB | Technology Systems Branch (India) |
| TSB | Technical Staffs Branch (UK) |
| TSB | Telecom Support Board (NASA) |
| TSB | Tangential-Sphere Bound |
| TSB | Truth Supervenes on Being (philosophy) |
| TSB | Tepid Sponge Bath (fever management) |
| TSB | Twin Side Band |
| TSB | Telecommunications Standard Block |
| TSB | Tall Shiny Building |
| TSB | Tepper School of Buisness |
| TSB | The Spiriting Board |
| TSB | Thrust Sector Blower |
| TSB | Towed Sonar Buoy |
| TSB | Transportation Service Bulletin |
| TSB | Transmission Synchronizer Brake |
| TSB | Transmit Silence Bit |
| TSB | Track Suit Bottom |