| Acronym | Definition |
|---|
| ITIG➣Information Technology Interest Group |
| ITIG➣Institute of Tectonics and Geophysics (Khabarovsk, Russia) |
| ITIG➣International Tunnelling Insurance Group |
| ITIG➣Idaho Technology Incentive Grant (est. 1997) |
| ITIG➣Infant/Toddler Incentive Grant (Canada) |