PK or pk may refer to:

Arts and entertainment

Gaming

Probability of kill {{No footnotes, date=July 2024 Computer games, simulations, mathematical model, models, and operations research programs often require a mechanism to determine statistically how likely the engagement between a weapon and a target will result in a sa ...

(P_k), in computer games, simulations, models, and operations research * '' Disney's PK: Out of the Shadows'', a 2002 video game *

Player killing Player versus player (PvP) is a type of multiplayer interactive conflict within a game between human players. This is often compared to player versus environment (PvE), in which the game itself controls its players' opponents and is usually off ...

, player versus player conflict in MMORPGs and MUDs

Other media

* ''PK'' (film), a 2014 Indian film directed by Rajkumar Hirani and starring Aamir Khan ** ''PK'' (soundtrack), its soundtrack by Shantanu Moitra, Ajay–Atul and Ankit Tiwari *

Paperinik Paperinik (), also known as PK (Italy, ), Superduck (UK and Digicomics) or Duck Avenger (US), is a comic book-costumed vigilante and Donald Duck's alter ego. The character was created in Italy by Elisa Penna, Guido Martina and Giovan Battista ...

, a cartoon character * Peacekeepers (''Farscape''), in the ''Farscape'' television show

Organisations

Pakistan International Airlines Pakistan International Airlines, commonly known as PIA, is the flag carrier of Pakistan. With its primary hub at Jinnah International Airport in Karachi, the airline also operates from its secondary hubs at Allama Iqbal International Airport ...

(IATA airline code) *

Polyteknikkojen Kuoro The Polytech Choir () is an academic male choir established in 1900. The majority of the choir's members are engineering students and graduate engineers from Aalto University. The activities of the choir include traditional spring and Christmas c ...

, a Finnish academic male choir *

Promise Keepers Promise Keepers is an Evangelical Christian parachurch organization for men. It opposes same-sex marriage, and champions chastity and marital fidelity and the man as being head of the household. Promise Keepers originated in the United Sta ...

, a Christian men's organization *

Swedish Publicists' Association The Swedish Publicists' Association ( Swedish: ''Publicistklubben'') is a Swedish organisation devoted to promoting freedom of the press and free speech in journalism. The Association was founded in Stockholm in 1874 and today it has approximately ...

(Swedish: ), Swedish journalist organization

People

P.K (producer) Future house is a house music genre that emerged in the 2010s in the United Kingdom, described as a fusion of deep house, UK garage and incorporating other elements and techniques of other EDM genres. It is high in energy, generally consisting ...

, of the South Korean music production duo Future Bounce * P. K. van der Byl (1923–1999), Rhodesian politician *

P. K. Subban Pernell-Karl Sylvester Subban ( ; born May 13, 1989) is a Canadian former professional ice hockey defenceman. Between 2009 and 2022, he played 13 seasons in the National Hockey League (NHL) with the Montreal Canadiens, Nashville Predators, and ...

(born 1989), hockey player *

Paul Kalkbrenner Paul Kalkbrenner () (born 11 June 1977) is a German musician and producer of electronic music. Because he breaks down his tracks into elements that are reassembled onstage, Kalkbrenner is considered a live act, as opposed to a DJ. He is most k ...

(born 1977), electronic musician *

Pawan Kalyan Konidela Pawan Kalyan (born Konidela Kalyan Kumar; 2 September 1971) is an Indian politician, actor, philanthropist, and martial artist serving as the List of deputy chief ministers of Andhra Pradesh, 11th Deputy Chief Minister of Andhra Prade ...

(born 1971), Indian film actor and politician *

Phil Katz Phillip Walter Katz (November 3, 1962 – April 14, 2000) was a computer programmer best known as the co-creator of the ZIP file format for data compression, and the author of PKZIP, a program for creating zip files that ran under DOS. ...

(1962–2000), creator of the PKZIP file compression software *

Philip K. Wrigley Philip Knight Wrigley (December 5, 1894 – April 12, 1977) was an American chewing gum manufacturer and a Major League Baseball executive, inheriting both of those roles as the son of William Wrigley Jr. Biography Wrigley was born in Chicago in ...

(1894–1977), American chewing gum manufacturer *

Paul Kagame Paul Kagame ( ; born 23 October 1957) is a Rwandan politician and former military officer who has been the President of Rwanda since 2000. He was previously a commander of the Rwandan Patriotic Front (RPF), a rebel armed force which invaded ...

(born 1957), President of Rwanda *

Patricia Karvelas Patricia Karvelas (born 28 January 1981) is an Australian radio presenter, current affairs journalist and political correspondent. Karvelas hosted ''RN Breakfast, Breakfast'' on Radio National, ABC Radio National from 2021 until 2024. Early l ...

, Australian radio presenter, current affairs journalist and political correspondent

Places

* PK, or

Busan–Gyeongnam Area Busan–Gyeongnam Area, also known as Pusan–Kyŏngnam (PK) is the metropolitan area of Busan, Ulsan, and Gyeongsangnam-do (Gyeongnam) located in southeast South Korea. History Until 1963, before Busan become a "List of special cities of South ...

, a metropolitan area in South Korea *

Pakistan Pakistan, officially the Islamic Republic of Pakistan, is a country in South Asia. It is the List of countries and dependencies by population, fifth-most populous country, with a population of over 241.5 million, having the Islam by country# ...

(ISO country code) *

Possum Kingdom Lake Possum Kingdom Lake (popularly known as P.K.), is a reservoir on the Brazos River located primarily in Palo Pinto County, TX, Palo Pinto County Texas. It was the first water supply reservoir constructed in the Brazos River basin. The lake has ...

, Texas, US *

Pickering, Ontario Pickering (2021 Canadian census, 2021 population 99,186) is a city located in Southern Ontario, Canada, immediately east of Toronto in Durham Region, Ontario, Durham Region. Beginning in the 1770s, the area was settled by primarily British colon ...

, Canada *

Peking Beijing, previously romanized as Peking, is the capital city of China. With more than 22 million residents, it is the world's most populous national capital city as well as China's second largest city by urban area after Shanghai. It is l ...

, old name of Beijing

Science and technology

Chemistry and pharmacology

* pK, negative logarithm of the

dissociation constant In chemistry, biochemistry, and pharmacology, a dissociation constant (''K''D) is a specific type of equilibrium constant that measures the propensity of a larger object to separate (dissociate) reversibly into smaller components, as when a complex ...

K (-logK) *

Pharmacokinetics Pharmacokinetics (from Ancient Greek ''pharmakon'' "drug" and ''kinetikos'' "moving, putting in motion"; see chemical kinetics), sometimes abbreviated as PK, is a branch of pharmacology dedicated to describing how the body affects a specific su ...

, a branch of pharmacology dedicated to determining the fate of substances administered to a living organism

Computing

Primary key In the relational model of databases, a primary key is a designated attribute (column) that can reliably identify and distinguish between each individual record in a table. The database creator can choose an existing unique attribute or combinati ...

, a unique attribute within the relational model of databases * PK, a magic number commonly used in the Zip file format * .pk, the country code top level domain (ccTLD) for Pakistan *

Port knocking In computer networking, port knocking is a method of externally opening ports on a firewall by generating a connection attempt on a set of prespecified closed ports. Once a correct sequence of connection attempts is received, the firewall rules ...

, a method of externally opening ports on a firewall *

Public-key cryptography Public-key cryptography, or asymmetric cryptography, is the field of cryptographic systems that use pairs of related keys. Each key pair consists of a public key and a corresponding private key. Key pairs are generated with cryptographic alg ...

Other uses in science and technology

PK machine gun The PK (, transliterated as ''Pulemyot Kalashnikova'', or "Kalashnikov's machine gun"), is a belt-fed general-purpose machine gun, chambered for the 7.62×54mmR rimmed cartridge. The modernized and most commonly known variant, known as the PKM ...

, a Soviet weapon, abbreviated from ''Pulemyot Kalashnikova'' (Kalashnikov machine gun) *

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 ...

(Dutch abbreviation ''paardenkracht'') *

Pentax K-mount The Pentax K-mount, sometimes referred to as the "PK-mount", is a bayonet lens mount standard for mounting interchangeable photographic lenses to 35 mm single-lens reflex (SLR) cameras. It was created by Pentax in 1975, and has since been ...

, a camera lens mount * Catalogue of galactic planetary nebulae (Perek-Kohoutek), in astronomy *

Renault PK The PK and New PK are successive generations of a minicar manufactured and marketed by Pars Khodro for model years 2000-2007 using the body of the first-generation Renault 5 and the engine of the Kia Pride. "PK" is an acronym for Pars Khodro. A ...

, a car made by Pars Khodro between 2000 and 2005 * PK screws, self-tapping screws (Parker-Kalon) for sheet metal

Sports

Parkour Parkour () is an athletic Training#Physical training, training discipline or sport in which practitioners (called ''traceurs'') attempt to get from one point to another in the fastest and most efficient way possible, without assisting equipment ...

, the activity or sport of moving rapidly through an area, typically urban, negotiating obstacles by running, jumping, and climbing *

Penalty kick (association football) A penalty kick (commonly known as a penalty or a spot kick) is a method of restarting play in association football, in which a player is allowed to take a single shot at the goal while it is defended only by the opposing team's Goalkeeper (asso ...

Penalty kill Short-handed is a term used in ice hockey and several related sports, including water polo, and refers to having fewer players on the ice during play, as a result of a penalty. The player removed from play serves the penalty in the penalty box f ...

, in ice hockey *

Placekicker In gridiron football, the placekicker (PK), or simply kicker (K), is the player responsible for attempts at scoring Field goal (football), field goals and extra points. In most cases, the placekicker also serves as the team's kickoff specialist ...

, in American football

Other uses

* ''

Point kilométrique A milestone is a numbered marker placed on a route such as a road, railway, railway line, canal or border, boundary. They can indicate the distance to towns, cities, and other places or landmarks like Mileage sign, mileage signs; or they c ...

'' (English: Kilometric point), a measurement of distance travelled *

Preacher's kid Preacher's kid is a term to refer to a child of a preacher, pastor, deacon, vicar, lay leader, priest, minister or other similar church leader. Although the phrase can be used in a purely descriptive way, it may also be used as a stereotype. In ...

, a child of a pastor * SAS ''President Kruger'' (F150), a former ship of the South African Navy *

Psychokinesis Telekinesis () (alternatively called psychokinesis) is a purported psychic ability allowing an individual to influence a physical system without physical interaction. Experiments to prove the existence of telekinesis have historically been cri ...

, an alleged psychic ability allowing a person to influence objects without physical interaction *

Pre-kindergarten Pre-kindergarten (also called pre-K or PK) is a voluntary classroom-based preschool program for children below the age of five in the United States, Canada, Turkey and Greece (when kindergarten starts). It may be delivered through a preschool ...

* Indonesia (

aircraft registration An aircraft registration is a code unique to a single aircraft, required by international convention to be marked on the exterior of every civil aircraft. The registration indicates the aircraft's country of registration, and functions much li ...

prefix PK) * PK, in

List of chewing gum brands This is a list of chewing gum brands in the world. Chewing gum is a type of gum made for chewing, and dates back at least 5,000 years. Modern chewing gum was originally made of chicle, a natural latex. By the 1960s, chicle was replaced by butad ...