| Acronym | Definition |
|---|
| ITG | Istituto Tecnico per Geometri (Italian: Technical Institute for Surveyors) |
| ITG | Investment Technology Group |
| ITG | Information Technology Group |
| ITG | In the Groove |
| ITG | Inside the Game |
| ITG | Instituut Voor Tropische Geneeskunde (Dutch: Institute of Tropical Medicine; Antwerp, Belgium) |
| ITG | International Trumpet Guild |
| ITG | Internet Technology Group |
| ITG | Imperial Tobacco Group (now Imperial Brands PLC; UK) |
| ITG | Identification Technology Group |
| ITG | Interoffice Trunk Group |
| ITG | Instituto Tecnologico de Galicia (Spanish: Technical Institute of Galicia) |
| ITG | Information Technology Governance |
| ITG | Internet Telephony Gateway |
| ITG | Inner Thigh Gap (health) |
| ITG | Induction Technology Group (air filters) |
| ITG | International Takhi Group (Mongolian Wild Horse Conservation) |
| ITG | Iraqi Transitional Government |
| ITG | It Takes Guts |
| ITG | Indian Tribal Government |
| ITG | Infrastructure Technology Group |
| ITG | Institute of Theoretical Geophysics |
| ITG | Internet Tough Guy |
| ITG | Infinite Technology Group Ltd. (Mineola, NY) |
| ITG | Installation Training Guide |
| ITG | Initial Terminal Guidance |
| ITG | Independent Test Group |
| ITG | IT-Gymnasiet (Swedish: IT Senior High School; AcadeMedia) |
| ITG | Infinity Transportation Group |
| ITG | Irish Traction Group (train preservation organization; est. 1989) |
| ITG | Income Tax Group |
| ITG | Institutional Training Grant (various organizations) |
| ITG | Insight Technology Group (Berkeley, CA) |
| ITG | Interim Transition Guidance |
| ITG | International Technical Group (control branding) |
| ITG | Individual Training Guidance (US Army) |
| ITG | Internal Telecommunications Group |
| ITG | Integrated Technology Group, Inc. (Las Vegas, NV) |
| ITG | Innovative Therapeutics Group |
| ITG | Interconnector Turkey-Greece Project |
