| T&RA | Tire and Rim Association 
| Others |
| TRA | Tacoma Robotics Alliance
| Others |
| TRA | Taiwan Railway Administration
| Others |
| TRA | Taiwan Railways Administration
| Others |
| TRA | Taiwan Relations Act
| Others |
| TRA | Taiwan Relationship Act
| Others |
| TRA | Taiwan Republic Administration
| Others |
| TRA | Tanzania Revenue Authority
| Others |
| TRA | Tape Recorders Anonymous
| Others |
| TRA | Taramajima, Japan
| Others |
| TRA | Targeted Research Action
| Others |
| TRA | Targeted Risk Assessment
| Others |
| TRA | Task Responsibility and Authority
| Others |
| TRA | Tax Reform Act
| Others |
| TRA | Taxi Regulation Act
| Others |
| TRA | Taxpayer Relief Act
| Others |
| TRA | Tea Restoration Act
| Others |
| TRA | Teacher Read Aloud
| Others |
| TRA | Teachers Retirement Association
| Others |
| TRA | Teaching Regulation Agency
| Others |
| TRA | Teams Ruin Agario
| Others |
| TRA | Technical Review Authority
| Others |
| TRA | Technology Readiness Assessment
| Others |
| TRA | Telecommunications Regulatory Authority
| Others |
| TRA | Temporary Rental Assistance
| Others |
| TRA | Temporary Reserved Airspace
| Others |
| TRA | Temporary Restricted Area
| Others |
| TRA | Tenant Remedies Act
| Others |
| TRA | Tennessee Regulatory Authority
| Others |
| TRA | Texas Restaurant Association
| Others |
| TRA | The Realty Alliance
| Others |
| TRA | The Rebel Alliance
| Others |
| TRA | The Retirement Advantage
| Others |
| TRA | The Right Audience
| Others |
| TRA | The Robloxian Army
| Others |
| TRA | The Ryhme Animal
| Others |
| TRA | Thoroughbred Racing Associations
| Others |
| TRA | Threat And Risk Assessment
| Others |
| TRA | Thrust Lever Resolver Angle
| Others |
| TRA | TIBCO Runtime Agent
| Others |
| TRA | Time to Revise Answer
| Others |
| TRA | Timely Reminders Answer
| Others |
| TRA | Tingley Reagh And Adams
| Others |
| TRA | Tioughnioga Riverside Academy
| Others |
| TRA | TiVo Research and Analytics
| Others |
| TRA | Token Ring Adapter
| Others |
| TRA | Top Risk Assessment
| Others |
| TRA | Top Rope Anchors
| Others |
| TRA | Torque Roll Axis
| Others |
| TRA | Total Request Attack
| Others |
| TRA | Tourism Research Australia
| Others |
| TRA | Toyota Roadside Assistance
| Others |
| TRA | Track Runnin Associates
| Others |
| TRA | Tracks Only
| Others |
| TRA | Tractor
| Others |
| TRA | Trade
| Others |
| TRA | Trade Readjustment Allowance
| Others |
| TRA | Trade Readjustment Allowances
| Others |
| TRA | Trade Recognition Australia
| Others |
| TRA | Trade Reference Assistant
| Others |
| TRA | Trade Replacement Act
| Others |
| TRA | Trades Recognition Australia
| Others |
| TRA | Traffic Research and Analysis
| Others |
| TRA | Training Requirements Analysis
| Others |
| TRA | Training Resources of America
| Others |
| TRA | Tramadol
| Others |
| TRA | Trans Rights Activists
| Others |
| TRA | Transaction Architecture
| Others |
| TRA | Transformative Research Awards
| Others |
| TRA | Transforming of Rental Assistance
| Others |
| TRA | Transforming Rental Assistance
| Others |
| TRA | Transmission
| Others |
| TRA | Transport Research Arena
| Others |
| TRA | Transporter
| Others |
| TrA | Transversus Abdominus
| Others |
| TRA | Travel
| Others |
| TRA | Trinity River Authority
| Others |
| TRA | Tripoli Rocketry Association
| Others |
| TRA | Triumph Register of America
| Others |
| TRA | Trofeo Rally Asfalto
| Others |
| TRA | Tuition Refund Application
| Others |
| TRA | Turnaround Requirements Analysis
| Others |