| IIG | Idiots In a Group 
| Others |
| IIG | Imaging Interest Group
| Others |
| IIG | Immersive Interaction Group
| Others |
| IIG | Immo Industry Group
| Others |
| IIG | Immunology Interest Group
| Others |
| IIG | Improving Institutions for Growth
| Others |
| IIG | In Ieder Geval
| Others |
| IIG | Inactive Ingredient Guide
| Others |
| IIG | Incomplete Inverse Gamma
| Others |
| IIG | Independent Investigations Group
| Others |
| IIG | Independent Investigative Group
| Others |
| IIG | Indian Institute of Geomagnetism
| Others |
| IIG | Industrial Insulation Group
| Others |
| IIG | Industrieisolierungen GmbH
| Others |
| IIG | Infill Infrastructure Grant
| Others |
| IIG | Information Integration and Governance
| Others |
| IIG | Information Integration Group
| Others |
| IIG | Innovation Initiative Grants
| Others |
| IIG | Insurance Institute of Gauteng
| Others |
| IIG | Insurance Institute of Guernsey
| Others |
| IIG | Integrated Industrial Gases
| Others |
| IIG | Interamerican Investment Group
| Others |
| IIG | Interior Image Group
| Others |
| IIG | International Insurance of Georgia
| Others |
| IIG | International Internet Gateway
| Others |
| IIG | International Internet Gateways
| Others |
| IIG | Interrange Instrumentation Group
| Others |
| IIG | Invest in Girls
| Others |
| IIG | Iran Internet Group
| Others |
| IIG | Iraqi Interim Government
| Others |
| IIG | Item Identification Guide
| Others |
| IIG | Item Identification Guides
| Others |