| Acronym | Definition |
|---|
| IHI | Institute for Healthcare Improvement (Boston, MA, USA) |
| IHI | International Holdings, Inc. (Atlanta, GA) |
| IHI | International Health Insurance (various organizations) |
| IHI | Institute for Healthcare Innovation (various organizations) |
| IHI | Ishikawajima-Harima Heavy Industries (Japan, ship building, aerospace & others) |
| IHI | International Hotel Investments (Malta) |
| IHI | Integrative Health Institute (Toronto, Ontario, Canada) |
| IHI | Intestinal Health Institute (various locations) |
| IHI | Institute of History |
| IHI | International Humanitarian Issues (Columbia University; New York) |
| IHI | Ilitch Holdings, Inc. (Michigan) |
| IHI | I'd Hit It |
| IHI | Imani House, Inc. (Brooklyn, NY) |
| IHI | Index to Health Information |
| IHI | Independent Home Inspections (New Haven, CT) |
| IHI | Integrated Hit Indicator |