| Acronym | Definition |
|---|
| TIG➣Tungsten Inert Gas (Welding) |
| TIG➣Takingitglobal |
| TIG➣Travail d'Intérêt Général (community service) |
| TIG➣Topical Interest Group |
| TIG➣Technology Implementation Group |
| TIG➣Time In Grade |
| TIG➣Trends in Genetics (journal) |
| TIG➣Tetanus Immune Globulin |
| TIG➣Technology Integration Group |
| TIG➣The Inspector General |
| TIG➣Trust In God |
| TIG➣Technology Implementation Group (AASHTO) |
| TIG➣The Imperial Guards (gaming guild) |
| TIG➣The Internet Guide (course) |
| TIG➣The Image Group (various organizations) |
| TIG➣Topten International Group (France) |
| TIG➣The Initiative Group (various locations) |
| TIG➣Technical Interest Groups |
| TIG➣Technology Initiative Grant (Legal Services Corporation) |
| TIG➣Time of Ignition |
| TIG➣Technology Infusion Guideline |
| TIG➣Terminal Internet Gateway |
| TIG➣Technology Initiatives Game |
| TIG➣Tonight Is Goodbye (band) |
| TIG➣Task Interaction Graph |
| TIG➣Transmission Identification Generator |
| TIG➣Technology Innovation Group, Inc |
| TIG➣Theater Information Grid |
| TIG➣Tactical Intelligence Group |
| TIG➣Tax on Industrialized Goods |
| TIG➣Técnica Industrial Guatemalteca (Spanish: Guatemalan Industrial Technics; Guatemala) |