| T&DA | Telemetry and Data Acquisition 
| Others |
| TDA | Table of Distribution and Allowance
| Others |
| TDA | Table of Distribution and Allowances
| Others |
| TDA | Tables of Distribution and Allowances
| Others |
| TDA | Tactical Decision Aid
| Others |
| TDA | Tactile Digital Assistant
| Others |
| TDA | TAFE Directors Australia
| Others |
| TDA | Take and Drive Away
| Others |
| TDA | tal Design Ability
| Others |
| TDA | tal Drama Action
| Others |
| TDA | Tamm Dancoff approximation
| Others |
| TDA | Tamn Dancoff approximation
| Others |
| TDA | Tandem Drive Axle
| Others |
| TDA | Tangan Di Atas
| Others |
| TDA | Tap Dat A**
| Others |
| TDA | Target Damage Assessment
| Others |
| TDA | Tax Deferred Account
| Others |
| TDA | Tax Deferred Annuity
| Others |
| TDA | Taxi Drivers Association
| Others |
| TDA | Teachers Driving Academy
| Others |
| TDA | Team Disney Anaheim
| Others |
| TDA | Teamworks Development Australia
| Others |
| TDA | Technical Data Analysis
| Others |
| TDA | Technical Design Architect
| Others |
| TDA | Technical Design Authority
| Others |
| TDA | Technical Direction Agency
| Others |
| TDA | Technicien Diagnostic Automobile
| Others |
| TDA | Technological Display of Affection
| Others |
| TDA | Teen Driver Association
| Others |
| TDA | Teen Driving Agreement
| Others |
| TDA | Telecommunications and Data Acquisition
| Others |
| TDA | Telecommunications Delivery Americas
| Others |
| TDA | Temporal Data Authority
| Others |
| TDA | Tender Dollar Amounts
| Others |
| TDA | Tennessee Dental Association
| Others |
| TDA | Tennessee Department of Agriculture
| Others |
| TDA | Texas Deer Association
| Others |
| TDA | Texas Dental Association
| Others |
| TDA | Texas Department of Agriculture
| Others |
| TDA | Text Dependent Analysis
| Others |
| TDA | The Dark Artifices
| Others |
| TDA | The Tamm Dancoff Approximation
| Others |
| TDA | Theatre Dance Academy
| Others |
| TDA | Thermal Donors Annihilation
| Others |
| TDA | Thread Dump Analyzer
| Others |
| TDA | Three Dimensional Art
| Others |
| TDA | Three Dragons Academy
| Others |
| TDA | TI Drive Assistance
| Others |
| TDA | Tigrai Development Association
| Others |
| TDA | Time Difference of Arrival
| Others |
| TDA | Time for Dark Adaption
| Others |
| TDA | Tire Derived Aggregate
| Others |
| TDA | Topological Data Analysis
| Others |
| TDA | Tornado Detection Algorithm
| Others |
| TDA | Total Dental Administrators
| Others |
| TDA | Total Detected Area
| Others |
| TDA | Total Drama Action
| Others |
| TDA | Tourism Development Authority
| Others |
| TDA | Tournament Directors Association
| Others |
| TDA | Toyota De Angola
| Others |
| TDA | Track Day Argentina
| Others |
| TDA | Trade and Development Agency
| Others |
| TDA | Trade Development Agency
| Others |
| TDA | Trade Development Alliance
| Others |
| TDA | Trail Drivers Association
| Others |
| TDA | Train Dynamics Analyzer
| Others |
| TDA | Training and Development Agency
| Others |
| TDA | Training and Development Associates
| Others |
| TDA | Training Delivery Agent
| Others |
| TDA | Trans dermal Application
| Others |
| TDA | Transformational Discipleship Assessment
| Others |
| TDA | Transit Development Act
| Others |
| TDA | Transition Distribution Amplitude
| Others |
| TDA | Translational data analytics
| Others |
| TDA | Transload Distribution Association
| Others |
| TDA | Transport Decarbonisation Alliance
| Others |
| TDA | Transportation Development Act
| Others |
| TDA | Transportation Development Association
| Others |
| TDA | Transportation Disaster Assistance
| Others |
| TDA | Trinidad, Colombia
| Others |
| TDA | Triple Detector Array
| Others |
| TDA | Tru Dat Allstars
| Others |
| TDA | Truck Driver Academy
| Others |
| TDA | Trust Development Authority
| Others |
| TDA | Turkish Dental Association
| Others |