| Acronym | Definition |
|---|
| TGS | Tokyo Game Show |
| TGS | Türkiye Gazeteciler Sendikasi (Turkish: Journalists' Union of Turkey) |
| TGS | The Game Station (gaming network) |
| TGS | Ticket-Granting Service |
| TGS | Tour Guide System (various companies) |
| TGS | Tokyo Girls' Style (dance group) |
| TGS | Tokyo Girls' Style (band) |
| TGS | Triglycine Sulfate (chemical compound) |
| TGS | Ticket-granting Server |
| TGS | Tank Gauging System (automation) |
| TGS | Ticket Granting Service |
| TGS | Template Graphics Software |
| TGS | Ticket Granting Server |
| TGS | Topeka Genealogical Society (Topeka, KS) |
| TGS | Turkish General Staff (Turkey) |
| TGS | The Girlie Show (fictitious sketch comedy show featured on the sitcom 30 Rock) |
| TGS | Tonbridge Grammar School (UK) |
| TGS | The Graveyard Shift |
| TGS | Tolworth Girls School (UK) |
| TGS | The Good Shepherd |
| TGS | The Giving Spirit |
| TGS | Traffic Guidance Scheme (Australia) |
| TGS | Teen Girl Squad |
| TGS | Turkish Ground Services (Istanbul, Turkey) |
| TGS | Travail, Genre et Sociétés (French: Labor, Gender and Societies; journal) |
| TGS | The Gargoyles Saga |
| TGS | Texas Gourd Society |
| TGS | The Geneva School (USA) |
| TGS | The Global Standard (journal) |
| TGS | That Gaming Site (gaming news website) |
| TGS | Tomato Growers Supply |
| TGS | Thomaston Grammar School (Thomaston, Maine) |
| TGS | Trinity Grammar School |
| TGS | Tomographic Gamma Scanner |
| TGS | Technigraphics, Inc. (Wooster, OH) |
| TGS | Turismo Giovanile Sociale (Venice, Italy; Youth and Social Tourism) |
| TGS | The Gaming Shoutcast (online gaming media and broadcast organisation) |
| TGS | Turreted Gun System |
| TGS | Trans-Global Solutions, Inc. (Houston, TX) |
| TGS | Trusted Gateway System (provides secure one-way transfer of data between enclaves) |
| TGS | Telemetry Ground Station |
| TGS | Thornton Grammar School (UK) |
| TGS | Technology & General Services (IMF) |
| TGS | The Gardner School (Vancouver, Washington private school) |
| TGS | Time Generation System |
| TGS | Tiffin Girls' School (Kingston upon Thames, England) |
| TGS | Thetford Grammar School (UK) |
| TGS | The Gaming Syndicate (online gaming community) |
| TGS | Tropical Gum Stain (philatelic imperfection) |
| TGS | Toronto Gymnosophical Society (Glen Echo) |
| TGS | Track Generation System |
| TGS | Tropical Grasslands Society |
| TGS | Target Ground Speed (US Air Force) |
| TGS | Transaction Gateway Server |
| TGS | Transportadora de Gas de Sur SA |
| TGS | Tax on the Circulation of Goods and Services (customs duty) |
| TGS | Tewksbury Girls Softball (Massachusetts) |