| Abbreviation | Definition |
|---|---|
| HRN | Human Resources Need |
| HRO-CC | Human Resources Office - Crystal City |
| HRPO | Human Research Protection Office |
| HRRP | Hospital Readmissions Reduction Program |
| HRSA | Health Resources and Services Administration |
| HRSA | Health Resources and Services Administration (DHHS) |
| HRSA | HHS Health Resources and Services Administration |
| HS | Head Start |
| HS | High Society |
| HS | Highly Suggested |
| HSA | Health Savings Account |
| HSARPA | Homeland Security Advanced Research Projects Agency |
| HSBC | House Small Business Committee |
| HSE | Health, Safety, and Environment |
| HSEA | Homeland Security Enhancement Act of 2003 |
| HSEQ | Health, Safety, Environment, and Quality |
| HSGAC | Homeland Security and Government Affairs Committee |
| HSGP | Homeland Security Grant Program |
| HSI | Health Services Inspection |
| HSI | Hearing and Sight Impaired |