| Abbreviation | Definition |
|---|---|
| IASR | India Advisory Stock Research |
| IASR | Institute for Applied Surfactant Research |
| IASR | International Academy of Sex Research |
| IASR | International Academy of Suicide Research |
| IASS | Institute for Advanced Sustainability Studies |
| IBFR | Institute for Business and Finance Research |
| IBR | Institute for Basic Research |
| IBR | Institute for Biopharmaceutical Research |
| IBR | Institute of Biogenesis Research |
| IBR | Interstate Background Research |
| IBRA | International Bee Research Association |
| IBRA | International Bone Research Association |
| IBRB | Interdisciplinary Biomedical Research Building |
| IBRC | Indiana Business Research Center |
| IBRC | Indonesian Biodiversity Research Center |
| IBRC | Ingestive Behavior Research Center |
| IBRD | Innovative Bridge Research and Deployment |
| IBRO | International Boxing Research Organization |
| IBRS | Intelligent Business Research Services |
| IBRU | International Boundaries Research Unit |