| Acronym | Definition |
|---|
| Td | Today |
| TD | Touchdown |
| TD | Chad (ISO country code, top level domain) |
| TD | Tied |
| TD | To Deliver |
| TD | Test Drive |
| TD | Toronto Dominion |
| TD | Table Data |
| TD | Travaux Dirigés (French) |
| TD | Trinidad & Tobago |
| TD | Tower Defense (video game type) |
| TD | Technical Data |
| TD | Tetanus/Diphtheria (vaccination) |
| TD | Test Data |
| TD | Time Delay |
| TD | Turbo Diesel |
| TD | Time Difference |
| TD | Time-Dependent |
| TD | Technical Director |
| TD | Toxic Dose |
| TD | Technical Documentation |
| TD | Technology Development |
| TD | Tardive Dyskinesia |
| TD | Treasury Department |
| TD | Track Data |
| TD | Transmit Data |
| TD | Temporary Document |
| TD | Tabular Data |
| TD | Taxi Driver |
| TD | Taxation Determination (Australia) |
| TD | Third Day (band) |
| TD | Tournament Director |
| TD | Telephone Directory |
| TD | Tangerine Dream (band) |
| TD | Training Developer |
| TD | Tenacious D (band) |
| TD | Training Development |
| TD | Total Depth (Oil Industry) |
| TD | Terrell Davis (football player) |
| TD | Technical Difficulties |
| TD | Telemetry Data |
| TD | Galashiels (postcode, United Kingdom) |
| TD | Transport Department (Hong Kong) |
| TD | Treasury Decision |
| TD | Transmitted Data |
| TD | Tony Dorsett (ex-NFL player) |
| TD | Technical Document |
| TD | Test Director |
| TD | Traffic Data |
| TD | Trust Deed (or First Deed of Trust) |
| TD | Training Day (movie) |
| TD | Temporary Disability |
| TD | Technical Description |
| TD | Tracking Dog (Canine Title) |
| TD | Thermal Desorption |
| TD | Transverse Direction |
| TD | Toon Disney (cable television channel) |
| TD | Tiberian Dawn (computer game) |
| TD | Thistledown (gaming, Asheron's Call) |
| TD | Temperature Difference |
| TD | Talent Development |
| TD | Temporary Duty |
| TD | Technology Demonstration |
| TD | Technical Department |
| TD | Therapy Dog |
| TD | Twin Disc |
| TD | Tank Destroyer |
| TD | Technical Direction |
| TD | Teachtaí Dála (member of the Irish parliament) |
| TD | Treasury Directive |
| TD | Target Detection |
| TD | Tiny Dancer (Elton John song) |
| TD | Transmit Diversity |
| TD | Tallahassee Democrat (Tallahassee, FL newspaper) |
| TD | Tunisian Dinar (national currency) |
| TD | Training Device |
| TD | Team Damage (gaming) |
| TD | Time Dilation (aka Lorentz contraction) |
| TD | Training and Doctrine |
| TD | Total Distribution |
| TD | Thanatophoric Dysplasia |
| TD | Tropical Disease |
| TD | Training Director |
| TD | Testing Device |
| TD | Tricky Dick (nickname for Richard Nixon) |
| TD | Three Dimension |
| TD | Terrain Data |
| TD | Threshold Dose |
| TD | Transfer Device |
| TD | Traffic Director |
| TD | Tangier Disease |
| TD | Tunnel Diode |
| TD | Time Differential |
| TD | Trash Disposal |
| TD | Tape Driver |
| TD | Tail Dragger |
| TD | Table of Distribution |
| TD | Transmission Design |
| TD | Theoretical Density |
| TD | Territorial Decoration |
| TD | Troland (unit of conventional retinal illuminance) |
| TD | Technical Directive |
| TD | Tidal Breathing (medicine) |
| TD | Tank Division (Russia) |
| TD | Thé Dansant (French) |
| TD | Tango Down (gaming) |
| TD | Torrent Damage (website) |
| TD | Train Dispatcher (NYC Transit Authority) |
| TD | Target Designator |
| TD | Technical Demonstration |
| TD | Trash Dump |
| TD | Transport Design |
| TD | Thomas Dexter (minister) |
| TD | Transmitter Distributor |
| TD | Timothy Dwight College (Yale University) |
| TD | Test Designer |
| TD | Tactical Doctrine (also seen as TACDOC) |
| TD | Total Degradation |
| TD | Transit Delays |
| TD | Test Dependency |
| TD | Tactical Director |
| TD | Temporal Displacement |
| TD | Target Dataset |
| TD | Total Drift |
| TD | Test Directive |
| TD | Tableau de Distribution (French: Switchboard) |
| TD | Treaty Document |
| TD | Turbo Dispatch (UK auto assistance dispatch system) |
| TD | Travel Detail |
| TD | Tool Drawing |
| TD | Terminal Dues (postal fee exchange) |
| TD | Target Defeat |
| TD | Transition Leader |
| TD | Transverse Defect (railway) |
| TD | Tango Delta |
| TD | Temporary Disconnect |
| TD | Timing Distributor |
| TD | Tyzzer's Disease (mouse liver disease) |
| TD | Trinchera Dolina |
| TD | Teachta Dail (Irish Member of Parliament) |
| TD | Top of Ditch (surveying) |
| TD | Test Deficiency |
| TD | True Departures (immigration) |
| TD | (US Navy Rating) TRADEVMAN (Training Device Man) |
| TD | (USN Rating) Tradesman |
| TD | Typed Delay |
| TD | Tributary Driver (SONET) |