| T&G | Tar and Gravel 
| Others |
| T&G | Text and Graphics
| Others |
| T&G | Tongue and Groove
| Others |
| Tg | Glass Transition Temperature
| Others |
| TG | Tactical Gamer
| Others |
| TG | Tajik
| Others |
| TG | Tal Glycopeptides
| Others |
| TG | Tango Guatemala
| Others |
| TG | Tank Grotte
| Others |
| TG | Tank Gun
| Others |
| TG | Target Group
| Others |
| TG | Task Group
| Others |
| TG | Tax Geek
| Others |
| TG | Teacher's Guide
| Others |
| TG | Teachers' Guide
| Others |
| TG | Team Game
| Others |
| TG | Team Geocachers
| Others |
| TG | Team Ghost
| Others |
| TG | Technical Director office, Ground Systems Directorate
| Others |
| TG | Technical Graphics
| Others |
| TG | Technical Group
| Others |
| TG | Technical Guidance (NRC Inspection Manual)
| Others |
| TG | Telangana
| State |
| TG | Temperature Gradient
| Others |
| TG | Tempered Glass
| Others |
| TG | Tenor Guitar
| Others |
| TG | Terrible Grammar
| Others |
| TG | Test Group
| Others |
| TG | Thalo Green
| Others |
| TG | Thank God
| Others |
| TG | Thanksgiving
| Others |
| TG | The Game
| Others |
| TG | The Gathering
| Others |
| TG | The Gazette
| Others |
| TG | The Graph
| Others |
| TG | The Great
| Others |
| TG | The Guardians
| Others |
| TG | ThermoGravimetry
| Others |
| TG | Thieves Guild
| Others |
| TG | This Game
| Others |
| TG | Thomas Garrett
| Others |
| TG | Thomas Gregg school
| Others |
| TG | Throbbing Gristle
| Others |
| TG | Thunder God
| Others |
| TG | ThyroGlobulin
| Others |
| TG | Tie Guy
| Others |
| TG | Tiefgarage
| Others |
| TG | Tightwad Gazette
| Others |
| TG | Time for Graphic to appear
| Others |
| TG | Tip Gap
| Others |
| TG | Titanium Gears
| Others |
| TG | Toastmaster Generals Toastmaster Club
| Others |
| TG | Toe Gunk
| Others |
| TG | Togo
| Others |
| TG | Toll Gate
| Others |
| TG | tom and George
| Others |
| TG | Tone Generator
| Others |
| TG | ToneelspelersGezelschap (Flemish Theater Company)
| Others |
| TG | Top Gear
| Others |
| TG | Top Graphic
| Others |
| TG | Top Gun
| Others |
| TG | Top of Grate
| Others |
| TG | Toronto Goth
| Others |
| TG | Total Goals
| Others |
| TG | Totally Genetic Machine Archetype
| Others |
| TG | Tough Girl
| Others |
| TG | Tough Guard
| Others |
| TG | Tough Guy
| Others |
| TG | Tough Guys
| Others |
| TG | Tour Group
| Others |
| TG | Tour Guard
| Others |
| TG | Tour Guide
| Others |
| TG | Toxoplasma Gondii
| Others |
| TG | Trace Gases
| Others |
| TG | Training Glider
| Others |
| TG | Training Group
| Others |
| TG | Trans Galactic
| Others |
| TG | Trans Gender
| Others |
| TG | Transaction Group
| Others |
| TG | Transformation of Generic
| Others |
| TG | Transformational Grammar
| Others |
| TG | TransGender
| Others |
| TG | Transistor Gegentaktendstufe
| Others |
| TG | Transition Graph
| Others |
| TG | Transmision Guatemalteca
| Others |
| TG | Transmission Grating
| Others |
| TG | Transparent GIF
| Others |
| TG | Transvaal Germiston
| Others |
| TG | Travelling Gantry
| Others |
| TG | Tree Granule
| Others |
| TG | Tres Grand (French: very large)
| Others |
| TG | Triange
| Others |
| TG | Tributary Glacier
| Others |
| TG | TriGlyceride
| Others |
| TG | Trucknology Generation
| Others |
| TG | Truncated Gaussian
| Others |
| TG | Trunk Group
| Others |
| TG | Tullinge Gymnasium
| Others |
| TG | Turbine Generator
| Others |
| TG | Turgovia
| Others |
| TG | Twilight Guardians
| Others |
| TG | Two Guys
| Others |
| TG | Type Generic
| Others |
| TG | Typical Games
| Others |