| Abbreviation | Definition |
|---|---|
| TTBA | Time To Be Announced |
| TTFA | Trinidad and Tobago Football Federation |
| TTFF | Trinidad and Tobago Football Federation |
| TTG | Tactical Table Game |
| TTK | Tee Time King |
| TTNC | Table Tennis National Champion |
| TTP | Time To Play |
| TTQ | Table Tennis Queensland |
| TTQ | Team Trials Qualified |
| TTR | Tallahassee Trail Riders |
| TTR | Ticket To Ride |
| TTR | Tony Thompson Racing |
| TTR | Track Track Record |
| TTS | Toronto Trap and Skeet (Pan Am Shooting Centre) |
| TTS | Trial Timing Scheme |
| TTSG | The Toronto Sports Group |
| TTT | Tennis Trivia Tour |
| TTT | Triple Times The Torture |
| TTU | Total Training University |
| TTV | TafelTennis Vereniging |