| Acronym | Definition |
|---|
| IGT | International Game Technology |
| IGT | Impaired Glucose Tolerance (medical) |
| IGT | Iowa Gambling Task (psychology) |
| IGT | International Game Tech |
| IGT | Image Guided Therapy (various organizations) |
| IGT | Interlinear Glossed Text (linguistics) |
| IGT | Insufficient Glandular Tissue (breastfeeding) |
| IGT | Inspector General of Taxation (Australia) |
| IGT | Industrial Gas Turbine |
| IGT | Institute of Gas Technology |
| IGT | Inspectoría General de Trabajo (Spanish: General Labour Inspectorate) |
| IGT | Ingot |
| IGT | Independent Gas Transporter (UK) |
| IGT | Intra-Group Transaction (insurance) |
| IGT | Insulated-Gate Transistor |
| IGT | Integrated Ground Test |
| IGT | Iino Gas Transport Co., Ltd. (Japan) |
| IGT | Improved Gas Turbine |
| IGT | Indicazione Geografia Tipica (Italian wine classification) |
| IGT | Interactive Graphics Technology |