| Acronym | Definition |
|---|
| TSSR | The Stainless Steel Rat (science fiction) |
| TSSR | Technical Support and Sales Representative (Romania) |
| TSSR | Total System Support Responsibility |
| TSSR | Tropo/Satellite Support Radio |
| TSSR | Turkmen Soviet Socialist Republic |
| TSSR | Tajik Soviet Socialist Republic (Tajikistan) |
| TSSR | Technical Site Survey Report |
| TSSR | Tip Sleeve Sleeve Ring |
| TSSR | Tropospheric Scatter (TROPO)-Satellite Support Radio (US DoD) |
| TSSR | Transfer Standard Stability Radiometer (US NASA) |
| TSSR | Temporarily Shared Social Reality |
| TSSR | Tropo-SATCOM Support Radio |
| TSSR | Troposcatter Satellite Support Radio/Relay |