HP may refer to:

Businesses, groups, organisations

HP Inc. HP Inc. is an American multinational information technology company with its headquarters in Palo Alto, California, that develops personal computers (PCs), printers and related supplies, as well as 3D printing services. It is the world's s ...

, an American technology company **

Hewlett-Packard The Hewlett-Packard Company, commonly shortened to Hewlett-Packard ( ) or HP, was an American multinational information technology company. It was founded by Bill Hewlett and David Packard in 1939 in a one-car garage in Palo Alto, California ...

, the predecessor to HP before the 2015 split **

Hewlett Packard Enterprise The Hewlett Packard Enterprise Company (HPE) is an American multinational information technology company based in Spring, Texas. It is a business-focused organization which works in servers, storage, networking, containerization software and ...

, the other company created as a result of the split * HP Foods, British food products company *

Handley Page Handley Page Limited was a British aerospace manufacturer. Founded by Frederick Handley Page (later Sir Frederick) in 1909, it was the United Kingdom's first publicly traded aircraft manufacturing company. It went into voluntary liquidation a ...

, an aircraft company *

Hindustan Petroleum Hindustan Petroleum Corporation Limited (HPCL) is an Indian public sector undertaking in Petroleum industry, petroleum and natural gas industry, headquartered in Mumbai. It is a subsidiary of the Oil and Natural Gas Corporation (ONGC), which ...

, Indian petroleum company, subsidiary of Oil and Natural Gas Corporation *

America West Airlines America West Airlines was an airline in the United States that operated from 1981 until it merged with US Airways in 2007. It was headquartered in Tempe, Arizona. Its main hub was at Phoenix Sky Harbor International Airport, with secondary hubs ...

(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 Penguin Group is a British trade book publisher and part of Penguin Random House, which is owned by the German media company, media Conglomerate (company), conglomerate Bertelsmann. The new company was created by a Mergers and acquisitions, mer ...

* Populist Party (Turkey) (''Halkçı Parti''), a political party in Turkey between 1983 and 1985

Brands, products, items

* Aero Adventure Aventura HP, an ultralight amphibian aircraft *

China Railways HP China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

, heavy freight train steam locomotive * Hilton-Pacey HP (car), a British 1920s 3-wheeled cyclecar automobile *

HP Sauce HP Sauce is a British brown sauce, the main ingredients of which are tomatoes, malt vinegar and molasses. It was named after London's Houses of Parliament. After making its first appearance on British dinner tables in the late 19th century, HP S ...

, British sauce named after Houses of Parliament *

Hy-Tek HP The Hy-Tek Hurricane 103 is a family of single-engined, high wing tricycle gear-equipped aircraft that were available in kit form from Hy-Tek Hurricane of Aurora, Oregon.Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, pages ...

, a single-engined high-wing trike aircraft *

Ilford HP HP is a cubic-grain black-and-white film from Ilford Photo with a long history. It originated as Hypersensitive Panchromatic plates Plate may refer to: Cooking * Plate (dishware), broad, mainly flat vessel commonly used to serve food ...

, cubic-grained black-and-white photographic film series, and photographic film prefix *

Walther HP The Walther HP (Heerespistole) was a pre-war commercial version of what would later become the Walther P38. Description About 30,000 Walther HP pistols were produced. The vast majority were chambered in 9×19mm, but several hundred were also pro ...

, handgun

Places

Harrison Plaza Harrison Plaza (HP) was a shopping mall situated along Adriatico Street corner Ocampo Street in the district of Malate in Manila, Philippines. Opened in 1976 and closed at the end of 2019, it was the first modern and major shopping mall loca ...

, a shopping mall in the Philippines that closed down in 2019 *

Heart Peaks Heart Peaks, originally known as the Heart Mountains, is a mountain massif in the Northern Interior of British Columbia, Canada. It is northwest of the small community of Telegraph Creek and just southwest of Callison Ranch. With a maximum eleva ...

, a volcano in Canada *

Himachal Pradesh Himachal Pradesh (; Sanskrit: ''himācāl prādes;'' "Snow-laden Mountain Province") is a States and union territories of India, state in the northern part of India. Situated in the Western Himalayas, it is one of the thirteen Indian Himalayan ...

, a state in India *

HP postcode area The HP postcode area, also known as the Hemel Hempstead postcode area,Royal Mail, ''Address Management Guide'', (2004) is a group of twenty-four postcode districts in England, within eleven post towns. These cover south-west Hertfordshire (inclu ...

, UK *

High Point, North Carolina High Point is a city in the Piedmont Triad region of the United States, U.S. state of North Carolina. Most of the city is in Guilford County, North Carolina, Guilford County, with parts extending into Randolph County, North Carolina, Randolph, ...

, US

People and characters

Hal Porter Harold Edward "Hal" Porter (16 February 1911 – 29 September 1984) was an Australian novelist, playwright, poet, and short story writer. He is known for his 1963 memoir, ''The Watcher on the Cast Iron Balcony''. The Hal Porter Short Story Comp ...

(1911–1984), Australian author *

Harry Pearson (audio critic) Harry Hall Pearson, Jr. (January 5, 1937 – November 4, 2014), known to his readers as HP, was an American journalist, audio reviewer, and publisher who founded '' The Absolute Sound'' magazine for high-end audio enthusiasts. Pearson is considere ...

(1937–2014), American audio critic *

Harry Potter (character) Harry James Potter is the titular character of the ''Harry Potter'' series of novels by J. K. Rowling. The plot of the seven-book series chronicles seven years in the life of the orphan Harry, who, on his eleventh birthday, learns he is a ...

, a fictional character in J.K. Rowling's Wizarding World fictional universe

Arts, entertainment, media

* ''

Harry Potter ''Harry Potter'' is a series of seven Fantasy literature, fantasy novels written by British author J. K. Rowling. The novels chronicle the lives of a young Magician (fantasy), wizard, Harry Potter (character), Harry Potter, and his friends ...

'', a novel series by J.K. Rowling *

Hello Project is a Japanese musical collective consisting of all female recording artists and groups under Up-Front Promotion, a subsidiary of Up-Front Group. The name was initially used as Michiyo Heike and Morning Musume's fan club name in 1999, but ...

(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 ''Hot Package'' is an Adult Swim entertainment variety show, created by Derrick Beckles. The show parodies network entertainment shows such as ''Entertainment Tonight'' and '' Access Hollywood''. Instead of sourcing its news from real celebritie ...

, 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

Science, engineering, technology

Horsepower Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are t ...

, a unit of power *

Haptoglobin Haptoglobin (abbreviated as Hp) is the protein that in humans is encoded by the ''HP'' gene. In blood plasma, haptoglobin binds with high affinity to ''free'' hemoglobin released from erythrocytes, and thereby inhibits its deleterious oxidativ ...

, a protein *

Hypersensitivity pneumonitis Hypersensitivity pneumonitis (HP) or extrinsic allergic alveolitis (EAA) is a syndrome caused by the repetitive inhalation of antigens from the environment in susceptible or sensitized people. Common antigens include molds, bacteria, bird droppin ...

, a respiratory inflammation * High precipitation supercell, a thunderstorm classification *

Hilbert polynomial In commutative algebra, the Hilbert function, the Hilbert polynomial, and the Hilbert series of a graded commutative algebra finitely generated over a field are three strongly related notions which measure the growth of the dimension of the homog ...

of a graded algebra *

Horizontal pitch Horizontal pitch (HP) is a unit of length defined by the Eurocard printed circuit board standard used to measure the horizontal width of rack mounted electronic equipment, similar to the rack unit (U) used to measure vertical heights of rack mount ...

unit, 0.2 inches, used to specify rack-mounted equipment width * H/P, hacking/

phreaking Phreaking is a slang term coined to describe the activity of a culture of people who study, experiment with, or explore telecommunication systems, such as equipment and systems connected to public telephone networks. The term ''phreak'' is a se ...

Heat pump A heat pump is a device that uses electricity to transfer heat from a colder place to a warmer place. Specifically, the heat pump transfers thermal energy using a heat pump and refrigeration cycle, cooling the cool space and warming the warm s ...

, a machine that transfers thermal energy between spaces

Other uses

Half-pay Half-pay (h.p.) was a term used in the British Army and Royal Navy of the 18th, 19th and early 20th centuries to refer to the pay or allowance an officer received when in retirement or not in actual service. Past usage United Kingdom In the E ...

, 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 hire purchase (HP), also known as an installment plan, is an arrangement whereby a customer agrees to a contract to acquire an asset by paying an initial installment (e.g., 40% of the total) and repaying the balance of the price of the asset pl ...

, a type of sales-instalment plan *

Hit points Health is a video game or tabletop game quality that determines the maximum amount of damage or fatigue something takes before leaving the main game. In role-playing games, this typically takes the form of hit points (HP), a numerical attribute ...

or health points in video games, often used in role-playing genre culture. *

Hollow-point bullet A hollow-point bullet is a type of expanding bullet which expands on impact with a soft target, transferring more or all of the projectile's energy into the target over a shorter distance. Hollow-point bullets are used for controlled pene ...

, a type of round *

Home page A home page (or homepage) is the main web page of a website. Usually, the home page is located at the Root directory, root of the website's Domain name, domain or subdomain. For example, if the domain is example.com, the home page is likely l ...

, the main page of a website *

Howiesons Poort Howiesons Poort (also called HP) is a technological and cultural period characterized by material evidence with shared design features found in South Africa, Lesotho, and Namibia. It was named after the Howieson's Poort Shelter archaeological site ...

, a stone-age technology period in Africa