PK or pk may refer to: Arts and entertainment Gaming Probability of kill (Pk), 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 (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 (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, a metropolitan area in South Korea Pakistan (ISO country code) Possum Kingdom Lake, Texas, US Pickering, Ontario, Canada Peking, old name of Beijing Science and technology Chemistry and pharmacology pK, negative logarithm of the dissociation constant K (-logK) Pharmacokinetics, 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 file format .pk, the country code top level domain (ccTLD) for Pakistan Port knocking, 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, the activity or sport of moving rapidly through an area, typically urban, negotiating obstacles by running, jumping, and climbing Penalty kick (association football) Penalty kill, in ice hockey Placekicker, 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 Indonesia (aircraft registration prefix PK) See also Piquet, a trick-taking