| Abbreviation | Definition |
|---|---|
| HAHS | Health and Applied Human Sciences |
| HAHS | Health and Human |
| HAHS | Health and Human Services |
| HAHT | Human and Animal Health Team |
| HAHU | Houston Association of Health Underwriters |
| HAI | Health Alliance International |
| HAI | Healthcare Associated Infection |
| HAI | Healthcare Associated Infections |
| HAIN | Health Action Information Network |
| HAL | Health Advisery Level |
| HAL | Health Advisory Level |
| HALE | Health Action Local Engagement |
| HALE | Healthy Life Expectancy |
| HALO | Health Achievement Learning Opportunities |
| HALP | Healthcare Application and Licensing Portal |
| HALY | Health Adjusted Life Years |
| HAM | Health Action and Mind |
| HAMAC | Health Authority Medical Advisory Committee |
| HAMB | HIV and AIDS Malignancy Branch |
| HAMC | Healthcare Analytics and Marketing Communications |