| IGI | I Get It 
| Others |
| IGI | I'm Going In
| Others |
| IGI | I'm Going Insane
| Others |
| IGI | Identity Governance and Intelligence
| Others |
| IGI | Identity Governance Intelligence
| Others |
| IGI | Ikatan Guru Indonesia
| Others |
| IGI | Illinois Gymnastics Institute
| Others |
| IGI | Image Guided Interventions
| Others |
| IGI | Indira Gandhi International Airport
| Others |
| IGI | Industrial General Insurance
| Others |
| IGI | Infectious Gastrointestinal Illness
| Others |
| IGI | Inferred from Genetic Interaction
| Others |
| IGI | Information Gatekeepers Inc
| Others |
| IGI | Information Governance Initiative
| Others |
| IGI | Infotech Global Inc
| Others |
| IGI | Innovative Genomics Initiative
| Others |
| IGI | Innovative Genomics Institute
| Others |
| IGI | Institute for Geotactical Intelligence
| Others |
| IGI | Institute of Geologists of Ireland
| Others |
| IGI | Institution Gang Investigator
| Others |
| IGI | Integrated Geochemical Interpretation
| Others |
| IGI | Intelligent Gathering of Information
| Others |
| IGI | International Gemological Institute
| Others |
| IGI | International Genealogical Index
| Others |
| IGI | International General Insurance
| Others |
| IGI | International Generic Indicators
| Others |
| IGI | Internet Governance Institute
| Others |
| IGI | Investigative Group International Investigative Group International
| Others |
| IGI | Irish German Indian
| Others |
| IGI | Italian Grid Infrastructure
| Others |