| Abbreviation | Definition |
|---|---|
| HKSI | Hong Kong Sports Institute |
| HLCI | Health Literacy and Communications Institute |
| HLDI | Highway Loss Data Institute |
| HLI | Hansen Leadership Institute |
| HLI | Happier Lives Institute |
| HLI | Health Law Institute |
| HLI | HERS Leadership Institute |
| HLI | Highly Leveraged Institutions |
| HLI | Hispanic Leadership Institute |
| HLI | History Leadership Institute |
| HLVI | Heart Lung and Vascular Institute |
| HLVI | Heart Lung Vascular Institute |
| HMDI | Health Manpower Development Institute |
| HMI | Health Maintenance Institute |
| HMI | Herbal Medicine Institute |
| HMI | Hetrick Martin Institute |
| HMI | High Mountain Institute |
| HMI | Hoist Manufacturers Institute |
| HMI | Hypnosis Motivation Institute |
| HMRI | Heritage Medical Research Institute |