| TG | The Great (band) | |
| TG | The Game (online game) | |
| TG | Top Gear (British car show) | |
|
| TG | Glass Transition Temperature | |
| TG | Togo (top level domain) | |
| TG | Transgender | |
| TG | Task Group | |
| TG | The Gathering | |
| TG | The Garden (Guns N' Roses song) | |
| TG | Top Gun (movie) | |
| TG | Transgendered | |
| TG | Thank God | |
| TG | That's Good | |
|
| TG | That Guy | |
| TG | Thanksgiving | |
| TG | Thai Airways International | |
| TG | Thurgau (Thurgovie; Swiss Canton) | |
| TG | The Gap | |
| Tg | Transgenic | |
| TG | ThinkGeek (website) | |
| TG | Triglyceride | |
| TG | Top Girls (play by Caryl Churchill) | |
| TG | Texas Guaranteed (education) | |
| TG | Technical Guide | |
| TG | 6-Thioguanine (chemotherapy drug) | |
| TG | Too Good | |
| Tg | Thyroglobulin | |
| TG | That's Great | |
| TG | Thai Airways International (IATA Airport Code) | |
| TG | TurboGrafx | |
| TG | Tagesgeld (German) | |
| TG | The Gamers | |
| TG | Third Grade | |
| TG | Toyoda Gosei Co., Ltd. (Japan) | |
| TG | Total Girl (magazine) | |
| TG | Throbbing Gristle (1970s band) | |
| TG | Target Group | |
| TG | Trigun (TV show) | |
| TG | Tokyo Gas Co., Ltd. (Tokyo, Japan) | |
| TG | Thermogravimetry (mass change study) | |
| TG | Terry Gilliam (director) | |
| TG | Twynstra Gudde (consulting firm; Netherlands) | |
| TG | Tiefgarage (German: underground parking) | |
| TG | Touch-and-Go | |
| TG | Traditional Grammar | |
| TG | Temperature Gradient | |
| TG | Topical Guide | |
| TG | Turbine Generator | |
| TG | Talkgroup | |
| TG | Technical Group | |
| TG | Tail Gunner | |
| T/G | Turbine Generator | |
| Tg | Teragram (metric unit of mass) | |
| TG | Total Guitar (magazine) | |
| T/G | Throbbing Gristle (band) | |
| TG | Trunk Group | |
| TG | Tactical Gamer (online community) | |
| TG | Ta Gueule (French: Shut Up) | |
| TG | TonenGeneral (oil company; Japan) | |
| TG | True Good (gaming) | |
| TG | Titan's Grip (World of Warcraft) | |
| TG | Trésorerie Générale (French: General Treasury) | |
| TG | Transmission Group | |
| TG | Transformational Grammar | |
| TG | Timing Generator | |
| TG | Transfer Guide (Maricopa County, AZ community college system) | |
| TG | Transformational-Generative (grammar) | |
| TG | Trinidad Guardian (Newspaper) | |
| TG | Timeless-Games.com (German software development company) | |
| TG | Togdheer (postal region, Somalia) | |
| TG | Taux de Gravité (French: Severity Rate) | |
| TG | Tail Gating | |
| TG | Trunking Gateway | |
| TG | Thompson Gun | |
| TG | Troop Guide (Boy Scouts of America) | |
| TG | Totino-Grace (Minnesota High School) | |
| TG | Toy Guy | |
| TG | Task Graph | |
| TG | Twin Groves (Illinois, USA) | |
| TG | Transactions on Graphics | |
| TG | True Gravity | |
| TG | Tail Grab (skiing and snowboarding) | |
| TG | Triple Glazing (windows) | |
| TG | Transmitter Group | |
| TG | Trinity Grammar (school) | |
| TG | Transaction Group | |
| TG | Tote Gote (mini bike) | |
| TG | Tanner Graph | |
| TG | Tigre Géant (Canadian retailer) | |
| TG | Tangent Galvanometer (physics) | |
| TG | Total Gradient (gravity and magnetic) | |
| TG | Tracking Gain | |
| TG | Traffic Gateway | |
| TG | Track Gate | |
| TG | Thermite Grenade | |
| TG | Tactical Guard | |
| TG | Transformation Gateway (Net6) | |
| TG | Top of Grate (surveying) | |
| TG | Texas Gunmen (gaming group) | |
| TG | Thomas Group Ltd (Orange, CA) | |
| TG | Tokyo Ghoul (fandom) | |