| Abbreviation | Definition |
|---|---|
| HPI | High Performance Insulation |
| HPI | Human Poverty Index |
| HPI | Hepatic Perfusion Index |
| HPLC | High Pressure Liquid Chromatographic |
| HPM | Hydrogen Peroxide Mouthwash |
| HPM | Hazardous Production Materials |
| HPNA | Home Phone Network Adapter |
| HPNS | High Pressure Neurologic Syndrome |
| HPO | High-pressure Oxygen |
| HPO | Hypertrophic Pulmonary Osteoarthropathy |
| HPOP | High Pressure Oxidizer Pump |
| HPOT | High Pressure Oxidizer Turbopump |
| HPOTP | High Pressure Oxidizer Turbopump |
| HPPF | Horizontal Payloads Processing Facility |
| HPPT | Heat Pain Perception Threshold |
| HPQ | Home Personality Questionnaire |
| HPR | Housing And Planning Research |
| HPR | High Pressure Rinsing |
| HPR | Hydrogen Pressure Regulator |
| HPRV | Hydrogen Pressure Relief Valve |
| HPS | Hantavirus Pulmonary Syndrome |
| HPS | Hermansky Pudlak Syndrome |
| HPS | Hand Picked Selected |
| HPS | Hydraulic Power System |
| HPSA | Helicobacter Pylori Stool Antigen |
| HPSSC | Health Physics Society Standards Committee |
| HPT | Hypothalamic Pituitary Thyroid |
| HPT | Home Pregnancy Test |
| HPT | High Pressure Test |
| HPT | Heading Pitching And Twisting |
| HPTE | High Profile Training Event |
| HPU | Hydraulic Power Unit |
| HPV | Human Papilloma Virus |
| HPV | High Pressure Valve |
| HPV | Hemophilus Pertussis Vaccine |
| HPVG | Hepatic Portal Venous Gas |
| HQ | Head Quarteres |
| HQ | Health Quotient |
| HQR | Handling Qualities Rating |
| HQS | High Quality Scans |
| Hr | Hour |
| HR | Heart rate |
| HR | Hospital Record |
| HR | Headache Removal |
| HR | High Risk |
| HR | Hopelessly Repressed |
| HR | Hertzsprung-Russell |
| HRA | Hay Remuneration Assistant |
| HRA | Heart-reactive Antibody |
| HRAA | High Rate Acquisition Assembly |