PQ may refer to:
Places Province of Quebec, the largest province of Canada by area Rancho Peñasquitos, San Diego, informally
Politics and law Parti Québécois, a provincial political party in Quebec, Canada Parliamentary question, a question posed during Question time in a Westminster system legislature Previous question, a motion in Robert's Rules of Order to close debate
Computing and electronics Perceptual quantizer, a transfer function for video display Picture quality; see video quality Power quality, the set of limits of electrical properties Priority queue, an abstract data structure
Software PowerQuest, a producer of computer HDD software tools for the DOS/Windows platform Priority queuing, a data packet scheduling technique libpq, a C library for the PostgreSQL database
Videogames Police Quest, a video game series Police Quest: In Pursuit of the Death Angel (1987 video game), first game in the series PQ: Practical Intelligence Quotient (2005 video game), first game in the series Persona Q: Shadow of the Labyrinth, a 2014 video game
Science, technology, and mathematics Psychology Play Quotient, a theory in child development developed by Stevanne Auerbach Precision questioning, an intellectual toolkit for critical thinking and for problem solving
Chemistry, biochemistry, pharmacology Performance qualification, in pharmaceutics, part of verification and validation Plastoquinone, a molecule involved in photosynthesis
Sports PQ International, a polo magazine Pickleball Quebec
Other uses PQ, outbound Arctic convoys of World War II
See also PQ1 (disambiguation) PQ2 (disambiguation) PQ3 (disambiguation)