IGT is an abbreviation for:

• 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.

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