| Abbreviation | Definition |
|---|---|
| IGQL | Internationale Gesellschaft für Quantitative Linguistik |
| IGQL | Me~dunarodnaâ Associaciâ Kvantitativnoj Lingvistiki |
| IGQL | Medunarodna Associaci Kvantitativnoj Lingvistiki |
| IGS | International Gem Society |
| IGS | International Gentlemans Society |
| IGS | International Geosynthetic Society |
| IGS | International Geosynthetics Society |
| IGS | Israel Geological Society |
| IGS | Ô×ÑèÔ ÔÒÙÐÕÜÕÒÙê ÔÙéèÐÜÙê |
| IGSHPA | International Ground Source Heat Pump Association |
| IGSN | International Gramsci Society Newsletter |
| IGST | International Golf Society of Taipei |
| IGU | International Gas Union |
| IGU | International Geographical Union |
| IGU | Union Géographique Internationale |
| IGU | Union Gographique Internationale |
| IHNS | Irish Head and Neck Society |
| IHRS | Indiana Historical Radio Society |
| IHS | Idaho Humane Society |
| IHS | Indiana Historical Society |