PT

PT, Pt, or pt may refer to:

Arts and entertainment

 * P.T. (video game), short for Playable Teaser, a video game developed to promote the cancelled video game Silent Hills
 * Porcupine Tree, a British progressive rock group

Businesses

 * Capital Cargo International Airlines (IATA airline designator PT)
 * West Air Sweden (IATA airline designator PT)
 * Putnam Transit, a bus system that serves Putnam County, New York
 * Portugal Telecom, the largest telecommunications service provider in Portugal
 * Piteå-Tidningen, a Swedish local newspaper

Business terminology

 * Part-time employment
 * Perseroan Terbatas (PT), the Indonesian name for a limited liability company

Political parties

 * Partido dos Trabalhadores (Brazil) (Workers' Party), a Brazilian political party
 * Parti des travailleurs (France) (Workers' Party), a defunct French political party
 * Partido dos Trabalhadores (Guinea-Bissau) (Workers' Party), a Bissau-Guinean political party
 * Partido del Trabajo (Mexico) (Labor Party), a Mexican political party

Places

 * Promontory or point, a prominent mass of land that overlooks lower-lying land or a body of water

Specific places

 * Portugal (ISO country code PT)
 * .pt, an Internet top-level domain name for Portugal
 * Portuguese language (ISO 639 alpha-2 code "pt")
 * Palestinian territories, comprise the West Bank (including East Jerusalem) and the Gaza Strip
 * Pistoia, a city in Italy
 * Port Townsend, Washington, a city in Jefferson County, Washington, in the United States
 * Pacific Time Zone, a time zone that observes standard time by subtracting eight hours from Coordinated Universal Time (UTC−8)

Biology and medicine

 * pt, patient, a medical abbreviation
 * PT, physical therapy, physical therapist or physiotherapy
 * Pararosaniline, Toluidine histological stain
 * Percutaneous surgery
 * Pertussis toxin, a protein-based exotoxin which causes whooping cough
 * Mitochondrial permeability transition, a loss of impermeability of the membranes of mitochondria
 * Petunidin, an anthocyanidin plant pigment
 * Prothrombin time, a measurement of blood coagulation
 * Pulmonary hypertension, an increase of blood pressure in the pulmonary artery, pulmonary vein, or pulmonary capillaries

Computing

 * .pt, an Internet top-level domain name for Portugal
 * Panorama Tools, a suite of programs and libraries originally written by the German physics and mathematics professor Helmut Dersch

Physics and chemistry

 * Platinum, a chemical element
 * Polythiophene, a molecule
 * Total pressure (P$t$), in fluid dynamics

Transportation

 * Chrysler PT Cruiser, a car model
 * PT boat, a type of small fast ship used by the US Navy in World War II
 * Public transport, or public transit

Other uses in science, technology, and mathematics

 * Peat, in the Unified Soil Classification System
 * Post-tensioned concrete, a reinforcement method in structural engineering; see prestressed concrete
 * Potential transformer, a type of electrical instrument transformer
 * Pressure treated wood

Sport

 * Pro Tour (disambiguation)
 * Personal trainer, in fitness and bodybuilding

Units of measurement

 * Pint (Pt.), a unit of volume or capacity
 * Point (typography) (Pt.), a unit of measure used in typography
 * pt, a measurement in the print industry for thickness of card stock

Physical fitness

 * Physical education, known in many Commonwealth countries as physical training or PT
 * Physical training instructor, in the British & Commonwealth military; also in the British police
 * Physical training instructor, in the U.S. military

Other uses

 * Pandit, a Hindu honorific applied to certain scholars of law, religion, philosophy or music
 * Perpetual traveler or "permanent tourist"
 * Pro tempore, in law, a Latin phrase "for the time being" (temporary)
 * P. T. (disambiguation)