| Acronym | Definition |
|---|
| IGK➣Instituto Guga Kuerten (Portuguese; Brazilian humanitarian organization) |
| IGK➣Islamische Gemeinde Kiel (German: Kiel Islamic Community; Kiel, Germany) |
| IGK➣Ideh Gostar Kaveh (Persian; Iranian industrial equipment company) |
| IGK➣Image Guided Technologies, Inc. (former stock symbol; now delisted) |
| IGK➣International Goju Karatedo |