PK or pk may refer to:

Arts and entertainment

Gaming

* Probability of kill (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. The terms are mo ...

, player versus player conflict in MMORPGs and MUDs

Other media

* ''PK'' (film), a 2014 Indian film directed by Rajkumar Hirani and starring Aamir Khan *

Paperinik Donald Duck, a cartoon fictional character, character created by the Walt Disney Company, is today the star of dozens of comic book, comic-book and comic strip, comic-strip stories published each month (in certain parts of the world, each week) arou ...

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

Organisations

Pakistan International Airlines Pakistan International Airlines ( ur, ; abbreviated PIA, ur, ) is an international airline that serves as the national flag carrier of Pakistan under the administrative control of the Secretary to the Government of Pakistan for Aviation. It ...

(IATA airline code) *

Polyteknikkojen Kuoro The Polytech Choir ( fi, Polyteknikkojen Kuoro; PK) 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 trad ...

, a Finnish academic male choir * Promise Keepers, 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 Electronic dance music, EDM genres. It is high in ene ...

, of the South Korean music production duo Future Bounce *

P. K. van der Byl Pieter Kenyon Fleming-Voltelyn van der Byl (11 November 1923 – 15 November 1999) was a Rhodesian politician who served as his country's Foreign Minister from 1974 to 1979 as a member of the Rhodesian Front (RF). A close associate of Pr ...

(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, a ...

(born 1989), hockey player * Paul Kalkbrenner (born 1977), electronic musician *

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. A c ...

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

Philip K. Wrigley Philip Knight Wrigley (December 5, 1894 – April 12, 1977), often called P. K. Wrigley, was an American chewing gum manufacturer and a Major League Baseball executive, inheriting both of those roles as the quiet son of his much more flamboyant fa ...

(1894–1977), American chewing gum manufacturer *

Paul Kagame Paul Kagame (; born 23 October 1957) is a Rwandan politician and former military officer who is the 4th and current president of Rwanda since 2000. He previously served as a commander of the Rwandan Patriotic Front (RPF), a Uganda-based rebel ...

(born 1957), President of Rwanda *

Patricia Karvelas Patricia Karvelas (born 29 January 1981) is an Australian radio presenter, current affairs journalist and political correspondent. Karvelas currently hosts ''RN Breakfast'' on Radio National. Early life Karvelas was born in Australia to Gree ...

, 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 " Directly Governed City", the wh ...

, a metropolitan area in South Korea *

Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...

(ISO country code) * Possum Kingdom Lake, Texas, US *

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

, Canada * Peking, 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 fa ...

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 determining the fate of substances administered ...

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

Computing

* PK, a magic number commonly used in the

Zip Zip, Zips or ZIP may refer to: Common uses * ZIP Code, USPS postal code * Zipper or zip, clothing fastener Science and technology Computing * ZIP (file format), a compressed archive file format ** zip, a command-line program from Info-ZIP * Zi ...

file format *

.pk .pk is the designated Internet country code top-level domain ( ccTLD) for Pakistan. PKNIC is the only organization endorsed by the Government of Pakistan to undertake the administration of 'pk' domain names. PKNIC is a non-profit making, non-s ...

, 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 ...

, 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, 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 the ...

(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 u ...

, a camera lens mount * Catalogue of galactic planetary nebulae (Perek-Kohoutek), in astronomy * Renault PK, a car made by Pars Khodro between 2000 and 2005

Sports

Parkour Parkour () is an athletic training discipline or sport in which practitioners (called ''traceurs'') attempt to get from point A to point B in the fastest and most efficient way possible, without assisting equipment and often while performing a ...

, 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. It i ...

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

, in ice hockey *

Placekicker Placekicker, or simply kicker (PK or K), is the player in gridiron football who is responsible for the kicking duties of field goals and extra points. In many cases, the placekicker also serves as the team's kickoff specialist or punter. Spe ...

, in American football

Other uses

* ''

Point kilométrique A milestone is a numbered marker placed on a route such as a road, railway line, canal or boundary. They can indicate the distance to towns, cities, and other places or landmarks; or they can give their position on the route relative to so ...

'' (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, 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 prefix PK)