| TDT | Tag Data Translation 
| Others |
| TDT | Tag Database Tool
| Others |
| TDT | Tal Dive Time
| Others |
| TDT | Talent Determination Test
| Others |
| TDT | Talor Dylan and Tristan
| Others |
| TDT | Tanda Tula, South Africa
| Others |
| TDT | Taxes on Distance Traveled
| Others |
| TDT | Teach Discover Treat
| Others |
| TDT | Team Development Tasks
| Others |
| TDT | Technical Drilling Tools
| Others |
| TDT | Temple Daily Telegram
| Others |
| TDT | Ten Dirty Texture
| Others |
| TDT | Terminal Deoxynucleotidyl Transferase
| Others |
| TDT | Terrestrial Digital Television
| Others |
| TDT | Terrestrial Dynamical Time
| Others |
| TDT | Texas Dropped Truck
| Others |
| TDT | That Dance Thing
| Others |
| TDT | The Daily Three
| Others |
| TDT | The Decoding Toolbox
| Others |
| TDT | The Dolan Twins
| Others |
| TDT | Theater Display Terminal
| Others |
| TDT | Themal death time
| Others |
| TDT | Thermal Death Rate
| Others |
| TDT | Thermal Death Time
| Others |
| TDT | Threat Detection Technology
| Others |
| TDT | Time Domain Transmission
| Others |
| TDT | Time Domain Transmissometry
| Others |
| TDT | Timed Decision Table
| Others |
| TDT | Timeless decision theory
| Others |
| TDT | Tone Decay Test
| Others |
| TDT | Tooth Decay Test
| Others |
| TDT | Topic Detection and Tracking
| Others |
| TDT | Toronto Dance Theatre
| Others |
| TDT | Torus Doubling Terminal
| Others |
| TDT | Total Distance Traveled
| Others |
| TDT | Tourist Development Tax
| Others |
| TDT | Toyota Dealer Team
| Others |
| TDT | Track Day Trophy
| Others |
| TDT | Traditional Decision Trees
| Others |
| TDT | Trans Dermal Technology
| Others |
| TDT | Transaction Dump Table
| Others |
| TDT | Transmission Disequilibrium Test
| Others |
| TDT | Transonic Dynamics Tunnel
| Others |
| TDT | Transport Driver Training
| Others |
| TDT | Transportation Development Tax
| Others |
| TDT | Trieger Dot Test
| Others |
| TDT | Triple Double Threat
| Others |
| TDT | Truck driver training
| Others |
| TDT | Truncated Distance Transform
| Others |
| TDT | Tucker Davis Technologies
| Others |
| TDT | Tucker- Davis Technologies
| Others |
| TDT | Turbo Diesel Touring
| Others |
| TDT | Turbo Diesel Truck
| Others |
| TDT | Tye Dye Tattoo, Inc.
| Others |