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 conflict in MMORPGs and MUDs

Other media

* ''PK'' (film), a 2014 Indian film directed by Rajkumar Hirani and starring Aamir Khan * Paperinik, a cartoon character * Peacekeepers (''Farscape''), in the ''Farscape'' television show

Organisations

* Pakistan International Airlines (IATA airline code) * Polyteknikkojen Kuoro, 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), of the South Korean music production duo Future Bounce * P. K. van der Byl (1923–1999), Rhodesian politician * P. K. Subban (born 1989), hockey player * Paul Kalkbrenner (born 1977), electronic musician * Phil Katz (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 (born 1957), President of Rwanda * Patricia Karvelas, 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 (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

Other uses in science and technology

* PK machine gun, a Soviet weapon, abbreviated from ''Pulemyot Kalashnikova'' (Kalashnikov machine gun) * Horsepower (Dutch abbreviation ''paardenkracht'') * Pentax K-mount, 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, 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'' (English: Kilometric point), a measurement of distance travelled * Preacher's kid, 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)