| Acronym | Definition |
|---|
| TSDD➣Tribunal Superior de Disciplina Deportiva (Spanish: Superior Tribunal of Sports Discipline; Bolivia) |
| TSDD➣Time-Shift Division Decoder |
| TSDD➣Toshiba Storage Device Division (Toshiba Corporation) |
| TSDD➣Texas State Defensive Driving (est. 1992) |