HP

• HP Inc., an American technology company
• Hewlett-Packard, the predecessor to HP before the 2015 split
• Hewlett Packard Enterprise, the other company created as a result of the split
• HP Foods, British food products company
• Handley Page, an aircraft company
• Hindustan Petroleum, Indian petroleum company, subsidiary of Oil and Natural Gas Corporation
• America West Airlines (1981–2006), an American airline (IATA code HP)
• Amapola Flyg (2004–present), a Swedish airline (IATA code HP)
• HP Books, an imprint of the Penguin Group
• Populist Party (Turkey) (Halkçı Parti), a political party in Turkey between 1983 and 1985

• Aero Adventure Aventura HP, an ultralight amphibian aircraft
• China Railways HP, heavy freight train steam locomotive
• Hilton-Pacey HP (car), a British 1920s 3-wheeled cyclecar automobile
• HP Sauce, British sauce named after Houses of Parliament
• Hy-Tek HP, a single-engined high-wing trike aircraft
• Ilford HP, cubic-grained black-and-white photographic film series, and photographic film prefix
• Walther HP, handgun

• Harrison Plaza, a shopping mall in the Philippines that closed down in 2019
• Heart Peaks, a volcano in Canada
• Himachal Pradesh, a state in India
• HP postcode area, UK
• High Point, North Carolina, US

• Hal Porter (1911–1984), Australian author
• Harry Pearson (audio critic) (1937–2014), American audio critic
• Harry Potter (character), a fictional character in J.K. Rowling's Wizarding World fictional universe

• Harry Potter, a novel series by J.{{nbsp}}K. Rowling
• Hello Project (H!P), a J-pop idol brand under Japanese music company Up-Front Group
• Horse-Power: Ballet Symphony, a 1932 ballet composed by Carlos Chávez
• Hot Package, a TV show created by Adult Swim
• HP: To the Highest Level Na!, a 2005 Philippine TV sitcom
• "HP" (song), a 2019 song by Maluma

• Horsepower, a unit of power
• Haptoglobin, a protein
• Hypersensitivity pneumonitis, a respiratory inflammation
• High precipitation supercell, a thunderstorm classification
• Hilbert polynomial of a graded algebra
• Horizontal pitch unit, 0.2 inches, used to specify rack-mounted equipment width
• H/P, hacking/phreaking
• Heat pump, a machine that transfers thermal energy between spaces

• Half-pay, former UK pay for military personnel not on active service
• Haltepunkt, German for "railway halt"
• Higher Power, a concept in Alcoholics Anonymous and in similar twelve-step organisations
• Hire purchase, a type of sales-instalment plan
• Hit points or health points in video games, often used in role-playing genre culture.
• Hollow-point bullet, a type of round
• Home page, the main page of a website
• Howiesons Poort, a stone-age technology period in Africa

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• HP Garage, museum of Hewlett-Packard's history
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• H&P (disambiguation)
• HPS (disambiguation)

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