| Acronym | Definition |
|---|
| TTDA➣The Times Digital Archive (UK) |
| TTDA➣Twin-Tube Dynamic Airbox (automobile part; Modshack) |
| TTDA➣Texas Tire Dealers Association |
| TTDA➣Tagged-Token Dataflow Architecture (parallel computing) |
| TTDA➣Toulon Twirl Dance Academy (Toulon, France) |
| TTDA➣transcatheter transvenous destruction of the adrenals |