| IGT | Geotechnik und Tunnelbau 
| Others |
| IGT | GPU Tools
| Others |
| IGT | I Got This
| Others |
| IGT | Idicazione Geographica Tipica
| Others |
| IGT | Igniter
| Others |
| IGT | Ignition Timing
| Others |
| IGT | Image Guided Therapy
| Others |
| IGT | Impact Growth and Transformation
| Others |
| IGT | Impaired Glucose Tolerance
| Others |
| IGT | Improved Gas Turbine
| Others |
| IGT | In Game Time
| Others |
| IGT | In Good Taste
| Others |
| IGT | Independent Gas Transportation
| Others |
| IGT | Independent Gas Transporter
| Others |
| IGT | Independent Gas Transporters
| Others |
| IGT | Independent Gospel Team
| Others |
| IGT | Indicazione Geografica Tipica
| Others |
| IGT | Indicazione Geografiche Tipici
| Others |
| IGT | Indicazione Geographica Tipica
| Others |
| IGT | Industrial Gas Turbine
| Others |
| IGT | Industrial Gas Turbines
| Others |
| IGT | Inert Gas Technology
| Others |
| IGT | Injection Gasoline Turbo
| Others |
| IGT | Insomniac Goo Theatre
| Others |
| IGT | Inspector General of Taxation
| Others |
| IGT | Institute of Gem Trading
| Others |
| IGT | Insufficient Glandular Tissue
| Others |
| IGT | Integrated Gas Technologies
| Others |
| IGT | International Game
| Others |
| IGT | International Game Tech
| Others |
| IGT | International Gaming and Technology
| Others |
| IGT | International Gaming Technology
| Others |
| IGT | International Gross Tonnage
| Others |
| IGT | International Guild Of Taxidermists
| Others |
| IGT | Intl Game Technology
| Others |
| IGT | Intra Governmental Transactions
| Others |
| IGT | Intra Group Transaction
| Others |
| IGT | Iowa Gambling Task
| Others |
| IGT | Iron Grill Table
| Others |
| IGT | Israeli Grid Technologies
| Others |