| Abbreviation | Definition |
|---|---|
| IAR | Institute for Agricultural Research |
| IARA | Iowa Alliance for Responsible Agriculture |
| IARC | Indiana Agriculture Resource Council |
| IARC | International Agricultural Research Center |
| IARCC | Institute for Agricultural Research on Climate Change |
| IARCs | International Agricultural Research Centres |
| IARD | International Agriculture and Rural Development |
| IARI | Indian Agricultural Research Institute |
| IARI | Indian Agriculture Research Institute |
| IARO | Iranian Agricultural Research Organization |
| IAS | Improvement of Agricultural Statistics |
| IAT | Institute of Agricultural Technology |
| IAUA | Indian Agricultural Universities Association |
| IAWS | Irish Agricultural Wholesale Society |
| IBAW | Internet based Agricultural Warnings |
| IBBA | International Brangus Breeders Association |
| IBFG | I Be Farming Grapes |
| IBFP | Integrated Backyard Food Production |
| IBLI | Index Based Livestock Insurance |
| ICAR | Imperial Council of Agricultural Research |