| T&D | Transportation and Docking 
| Others |
| T&DA | Telemetry and Data Acquisition
| Others |
| T&DCMC | Thame and District Classic Motor Club
| Others |
| T&DE | Test and Diagnostic Equipment
| Others |
| T&DS | Tracking and Data Systems/JPL
| Others |
| T&E | Test and Evaluation
| Others |
| T&E | Transport and Environment
| Others |
| T&E | Travel and Entertainment
| Others |
| T&EO | Training and Evaluation Outline
| Others |
| T&G | Tar and Gravel
| Others |
| T&G | Text and Graphics
| Others |
| T&G | Tongue and Groove
| Others |
| T&HPC | Traffic and Highway Patrol Command
| Others |
| T&I | Test and Integration
| Others |
| T&I | Trade and Industrial Education
| Others |
| T&J | Trevor and Josef
| Others |
| T&L | Toyota and Lexus
| Others |
| T&L | Traffic and Logistics
| Others |
| T&L | Transform and Lightning
| Others |
| T&M | Test and Maintenance
| Others |
| T&M | Test and Measurement
| Others |
| T&M | Time and Material
| Others |
| T&M | Time and Materials
| Others |
| T&M | Tools and Materials
| Others |
| T&M | Tools and Methodology
| Others |
| T&MW | Test & Measurement World
| Others |
| T&MWO | Test & Measurement World Online
| Others |
| T&O | Test and Operations
| Others |
| T&O | Trauma and Orthopaedics
| Others |
| T&PD | Training And Placement department
| Others |
| T&PSAB | Thorax and Pelvis Side Airbag
| Others |
| T&R | Tenderness and rebound
| Others |
| T&R | Tip and Ring
| Others |
| T&R | Transmitter and Receiver
| Others |
| T&R | Treat and Release
| Others |
| T&RA | Tire and Rim Association
| Others |
| T&RS | Traffic and Road Safety
| Others |
| T&S | Tasks and Skills
| Others |
| T&S | Training and Simulation
| Others |
| T&S | Tuning and Styling
| Others |
| T&S | Type and Screen
| Others |
| T&T | Taxed and Tested
| Others |
| T&T | Tips and Tricks
| Others |
| T&T | Transition & Transformation
| Others |
| T&T | Transportation and Transportability
| Others |
| T&T | Trekking and Travel
| Others |
| T&TMA | Trinidad and Tobago Medical Association
| Others |
| T&V | Test and Verification
| Others |
| T&V | Testing and Validation
| Others |
| T&V | Truck and Van
| Others |