| Acronym | Definition |
|---|
| HP | Hewlett-Packard |
| HP | Horsepower |
| HP | Home Page |
| HP | High Performance |
| HP | High Power(ed) |
| HP | High Point (geographical) |
| HP | Health Plan |
| HP | High-Profile |
| HP | Hidden Power (Pokemon) |
| HP | High Pressure |
| HP | High Pass (Filter) |
| HP | Harry Potter |
| HP | Higher Power |
| HP | High Production |
| HP | Head Phones |
| HP | Health Promotion |
| HP | Hire Purchase |
| HP | Hospital (UK) |
| HP | Headphone(s) |
| HP | High Priority |
| HP | Hand Phone (cellular phone) |
| HP | Human Performance |
| HP | Highway Patrol |
| HP | Health Points (video games) |
| HP | Hand-Painted |
| HP | Honda Prelude |
| HP | Health Physics |
| HP | High Purity |
| HP | Harp |
| HP | Heat Pipe |
| HP | High Priced |
| HP | Hyde Park |
| HP | House Party (Sims expansion pack) |
| HP | Historic Preservation (various locations) |
| HP | Hole Punch(er) |
| HP | Hand Picked (groundnuts) |
| HP | Hemel Hempstead (postcode, United Kingdom) |
| HP | Halbpension (German: halfboard) |
| HP | Himachal Pradesh (state in India) |
| HP | Heparin |
| HP | Hydrogen Peroxide |
| HP | Hypothalamic-Pituitary |
| HP | Hit by Pitch (baseball) |
| HP | Helicobacter Pylori (bacteria) |
| HP | Hôpitaux de Paris (French: Paris Hospitals; Paris, France) |
| HP | Honors Program (various schools) |
| HP | Hard Palate (mouth) |
| HP | Hemiparesis (medical disorder) |
| HP | Handicapped Parking (transportation) |
| HP | Half-Pint |
| HP | High Priest |
| HP | Houses of Parliament (UK) |
| HP | America West Airlines (airline code) |
| HP | Hunter Pence (baseball player) |
| HP | High Pitch (musical instruments) |
| HP | Helmerich & Payne (oil company) |
| HP | Huntington Park (California) |
| HP | Hot Process (soap making) |
| HP | Hip Pain |
| HP | Holding Pattern |
| HP | Hollowpoint (bullet) |
| HP | Horizontal Pitch (electronic equipment) |
| HP | Hello! Project |
| HP | Home Port (of a vessel) |
| HP | History and Physical (medical) |
| HP | Hotplugging (ability to plug in new devices and use immediately) |
| HP | Horizontal Parallax (astronomy) |
| HP | Perigee Altitude (US NASA) |
| HP | Hypersensitivity Pneumonitis |
| HP | Health Practitioner |
| HP | Hunter's Point (San Francisco district) |
| HP | Holiday Pay |
| HP | Honey Pie (Beatles song) |
| HP | Hoi Polloi |
| HP | Hodrick-Prescott (Filter) |
| HP | Hersheypark (amusement park Hershey, Pennsylvania) |
| HP | Hole Plug |
| HP | Hydraulic Platform (self-propelled, fire brigade road vehicle for aerial rescue/firefighting used in UK) |
| HP | Health Post |
| HP | Hit Probability |
| HP | Health Physicist |
| HP | Human Pituitary Gonadotropin |
| HP | Hiroshima Prefecture |
| HP | Henry Paul (musician) |
| HP | Hurricane Program (US FEMA) |
| HP | Handyphone |
| HP | Horizontal Polarization |
| HP | Herald Press |
| HP | Heart Points (gaming) |
| HP | Hydrogen Purge |
| HP | Hot Pipe |
| HP | Heritage Party (Zambia) |
| HP | Hindustan Petroleum Corporation Ltd |
| HP | Hladno Pivo (band) |
| HP | Hope Page |
| HP | Head Prefect |
| HP | Harmonic Power |
| HP | Horse Piss (Horse Piss Beer) |
| HP | Hintapyyntö (Finnish) |
| HP | Hyper Police (anime series) |
| HP | Hale Pohaku (Dormitory at Mauna Kea Observatories) |
| HP | Half Position (music) |
| HP | Hit Point(s) (gaming) |
| HP | Higher Order Path |
| HP | Heptode |
| HP | Hemi-Pelvectomy (amputation) |
| HP | Hide Position |
| HP | Hajtás Pajtás (Bike Messenger Company; Hungary) |
| HP | Hazi Palinka (Hungarian plum brandy) |
| HP | Human Particulate |
| HP | Head Pixie (cartoon character) |
| HP | Household Profile |
| HP | Health Point(s) (gaming) |
| HP | Hypothication |
| HP | Hiper Pool |
| HP | Hora Prima (Latin: First Hour, epigraphy) |
| HP | Hic Positus (Latin: Buried Here, epigraphy) |
| HP | Honesta Puella (Latin: Virtuous Girl, epigraphy) |
| HP | Hydrographic Procedure |
| HP | Hereditatis Possessio (Latin: Ownership by Heritage, epigraphy) |
| HP | Horizontal Plotter |
| HP | Honestus Puer (Latin: Virtuous Boy, epigraphy) |