| Abbreviation | Definition |
|---|---|
| IHR | Institute for Health Research |
| IHR | Institute for Human Reproduction |
| IHR | Institute for Human Resources |
| IHR | Institute for Humanities Research |
| IHR | Institute of Historical Research |
| IHRD | Institute of Human Resource and Develepment |
| IHRD | Institute of Human Resources Development |
| IHRI | International Hydraulic Research Institute |
| IHRM | Institute of Health Risk Managers |
| IHS | Institute for Housing Studies |
| IHS | Institute for Human Services |
| IHS | Institute for Humane Studies |
| IHS | Institute of Health Sciences |
| IHT | Institute of the Himalayan Tradition |
| IHV | Institute of Health Visiting |
| IHV | Institute of Human Virology |
| IHW | Institute of Health and Wellbeing |
| II | Information Institute |
| II | Institutions in India |
| IIA | Indian Institute of Astrophysics |