| Abbreviation | Definition |
|---|---|
| HO | hypertrophic osteoarthropathy |
| HoB | Heart of Birmingham (PCT) |
| HoB | human osteoblast |
| HoCA | head of corporate affairs |
| HoCG | head of clinical governance |
| HoEFT | Heart of England NHS Foundation Trust |
| HOMGO | hypomagnesemia renal with ocular involvement |
| HoMM | Head of Medicines Management |
| HON | Health of The Nation |
| HON | Health on the Net Foundation |
| HON | honorary |
| HoNOSXX | Health of the Nation Outcome Scales |
| HOOF | Home Oxygen Order Form |
| HOOH | Home Out Of Hours |
| HOSOL | Home Office Shortage Occupation List |
| HotN | Health of the Nation |
| HPA | Health Promotion Advisor |
| HPA | Health Protection Agency (UK) |
| HPA | His-Purkinje activity |
| HPA | human platelet antigen |