IGT may refer to:
- Impaired glucose tolerance, a term associated with diabetes
- Interlinear Glossed Text, a structured representation language text in various forms (usually for multilingual translations)
- International Game Technology, a gaming systems manufacturer
- Integrated Telecom Technology, or IgT, a former semiconductor company
- Indicazione Geografica Tipica, a class of Italian wine appellation ranking below Denominazione di Origine Controllata but above Vino da Tavola
- Iowa gambling task, a psychological task thought to simulate real-life decision making
- Indonesia's Got Talent, an Indonesian version of the Got Talent series
- India's Got Talent, an Indian version of the Got Talent series