PK
- .pk
- Busan–Gyeongnam Area
- Catalogue of galactic planetary nebulae
- Horsepower
- List of chewing gum brands
- P. K. Subban
- P. K. van der Byl
- P.K (producer)
- PK (film)
- PK (soundtrack)
- PK machine gun
- PK screw
- Pakistan
- Pakistan International Airlines
- Paperinik
- Parkour
- Patricia Karvelas
- Paul Kagame
- Paul Kalkbrenner
- Pawan Kalyan
- Peacekeepers (Farscape)
- Peking
- Penalty kick (association football)
- Penalty kill
- Pentax K-mount
- Pharmacokinetics
- Phil Katz
- Philip K. Wrigley
- Pickering, Ontario
- Piquet
- Placekicker
- Player killing
- Point kilométrique
- Polyteknikkojen Kuoro
- Port knocking
- Possum Kingdom Lake
- Prashant Kishor
- Pre-kindergarten
- Preacher's kid
- Primary key
- Probability of kill
- Promise Keepers
- Psychokinesis
- Public-key cryptography
- Renault PK
- SAS President Kruger (F150)
- Swedish Publicists' Association
- Zip (file format)