| Acronym | Definition |
|---|
| TTTC➣Test Technology Technical Council (aka Test Technology Technical Committee; IEEE) |
| TTTC➣Think Tank Training Centre (Canada) |
| TTTC➣Toyota Tsusho Thailand Co. Ltd. (est. 1957) |
| TTTC➣The Tibetan Tea Company (band) |
| TTTC➣Too Tough to Call |
| TTTC➣Trees to the Curb (band) |