| Acronym | Definition |
|---|
| TAD | Telephone Answering Device |
| TAD | Temporary Assigned Duty (military) |
| TAD | Training and Development (various organizations) |
| TAD | The American Dream |
| TAD | Thinking and Doing |
| TAD | Tube Amp Doctor (vacuum tubes) |
| TAD | Theatre and Dance (various schools) |
| TAD | Transport A La Demande (French: Transportation on Demand; public transportation; France) |
| TAD | Trade and Agriculture Directorate (Organization for Economic Co-operation and Development) |
| TAD | The Asian Dynasties (gaming) |
| TAD | Temporary Additional Duty (non-unit-related personnel; US DoD) |
| TAD | Technical Activities Division |
| TAD | Telephony Audio Device |
| TAD | Turner Auto Design |
| TAD | The Autumn Defense (band) |
| TAD | Take A Dump |
| TAD | Top Alcohol Dragster (drag racing class) |
| TAD | Temporary Additional Duty |
| TAD | Time Available for Delivery (US DoD) |
| TAD | Total Audience Delivery (television viewership) |
| TAD | Technology and Design |
| TAD | Transit Accompanying Document (customs) |
| TAD | Technical Assistance Division |
| TAD | Technical Architecture Document (various organizations) |
| TAD | Technical Assistance Document |
| TAD | Topological Anomaly Detection (algorithm) |
| TAD | Theater Air Defense |
| TAD | Tobyhanna Army Depot |
| TAD | Tricuspid Annular Displacement |
| TAD | Transcription Activation Domain (genetics) |
| TAD | Texas Association of the Deaf |
| TAD | Tax Appraisal District |
| TAD | Turn-Around Document |
| TAD | Take As Directed (pharmacology) |
| TAD | Transboundary Animal Disease |
| TAD | Telephone And Data |
| TAD | Towed Artillery Digitization |
| TAD | Temporary Active Duty |
| TAD | Transatlantic Dialogue |
| TAD | Tooele Army Depot (Tooele, Utah) |
| TAD | Through Air Dried |
| TAD | Toxicity Assessment Division (US EPA) |
| TAD | Tactical Air Defense |
| TAD | Technical Affairs Department (various locations) |
| TAD | Thermophilic Aerobic Digestion |
| TAD | Tactical Air Direction |
| TAD | Transdermal Alcohol Device |
| TAD | Target Audience Description |
| TAD | Trade Acceptance Draft (post-dated payment draft given by a buyer to its supplier) |
| TAD | The Allied Defense (gaming clan) |
| TAD | Technical Art Director (film & video game production) |
| TAD | Temperature Accelerated Dynamics |
| TAD | Trainee Assistant Director (film industry) |
| TAD | Traveling Around Drunk |
| TAD | Tennessee Association of the Deaf |
| TAD | Textile Air Dispersion (air pressure system) |
| TAD | Transitional Assistance Department (San Bernardino County, Human Services Department) |
| TAD | Training Aids Division (US Navy) |
| TAD | Type Abstrait de Données (French: Abstract Data Type) |
| TAD | Tourism Assistance Database (Australia) |
| TAD | Taglia Advanced Dentistry (Elmwood Park, IL) |
| TAD | Tender Assist Drilling (offshore oil and gas) |
| TAD | Trade Acceptance Drafts (Actrade) |
| TAD | Test Access Digroup |
| TAD | Trent Architecture Design (UK) |
| TAD | Tobacco Acquisition Disorder (alt.smokers.pipes) |
| TAD | Targeting A Dream, Inc |
| TAD | Training Augmentation Device |
| TAD | Technology Availability Date |
| TAD | Turbo Alternator Drive |
| TAD | Tactical Awareness Display (aviation) |
| TAD | Transport Aircraft Directorate (US FAA) |
| TAD | Technical Assistance and Direction |
| TAD | Top Assembly Drawing |
| TAD | Target Award Date |
| TAD | Technical Assessment Division |
| TAD | Transmit Antenna Diversity |
| TAD | Temporary Administrative Assignment |
| TAD | Technical Assistant to the Director (Army Research Laboratory position) |
| TAD | Tower, Approach, and Departure Control Air Traffic Control Facility |
| TAD | Technology Area Description |
| TAD | Technical Approach Document |
| TAD | Tactical Air Directive |
| TAD | Type Accreditation Document |
| TAD | Target Area Designator |
| TAD | Test Access Device |
| TAD | Towed Array Dynamics |
| TAD | Technical Area Document |
| TAD | Total Air Diffuser (HVAC systems) |