| Abbreviation | Definition |
|---|---|
| IDK | I Dis Knife |
| IENC | Inland Electronic Navigational Charts |
| IGB | International Geography Bee |
| IGIC | Indiana Geographic Information Council |
| IGIC | Iowa Geographic Information Council |
| IGP | Indicazione Geographica Protetta |
| IGT | Indicazione Geographica Tipica |
| IGYS | International Geography Youth Summit |
| IGZ | Intermediate Geography Zone |
| IJG | Indonesian Journal of Geography |
| IMGS | International Medical Geography Symposium |
| IPAC | Indigenous Peoples Atlas of Canada |
| JGG | Journal of Geography and Geology |
| JLAG | Journal of Latin American Geography |
| KGA | Kansas Geographic Alliance |
| KGA | Kentucky Geographic Alliance |
| LAR | Low Arch Rainbow |
| LATING | latitude and longitude |
| LGT | Limited Geography Theory |
| LIS | Land Information System |