PCT

PCT, P.C.T. or pct may refer to:

Math, science and technology

 * pct, an abbreviation for "%" (percentage)
 * PCT theorem, on parity, charge and time inversions
 * Perceptual control theory, a model of behavior
 * Personal Communication Telephone, a mobile telephone service
 * Polychlorinated terphenyl, an industrial chemical
 * Polycyclohexylenedimethylene terephthalate, a thermoplastic polyester
 * Private Communications Technology, an obsolete Internet security protocol
 * Programmable communicating thermostat, California, US term
 * Projected capacitive touchscreen, a type of touchscreen technology

Medicine

 * Patient care technician
 * Person-centered therapy
 * Porphyria cutanea tarda, the most common subtype of porphyria
 * Postcoital test, for infertility
 * Post-coital tristesse
 * Pragmatic clinical trial
 * Primary care trusts, UK NHS bodies 2001–2013
 * Procalcitonin, a precursor of the hormone calcitonin
 * Progestogen challenge test
 * Proximal convoluted tubule, in the kidney
 * Proton computed tomography (pCT), or proton CT

Places

 * Pacific Crest Trail, US hiking trail from Mexico–US to Canada–US border
 * Potomac Consolidated TRACON, FAA facility designation
 * Princeton Airport (New Jersey), Montgomery Township, New Jersey, US, IATA code

Politics

 * Communist Party of Togo (Parti Communiste du Togo)
 * Congolese Party of Labour (Parti Congolais du Travail)
 * Tunisian Communist Party (Parti Communiste Tunisien)

Other

 * P.C.T, hip-hop musicians
 * Paleolithic continuity theory, suggesting the Proto-Indo-European language comes from the Upper Paleolithic
 * Patent Cooperation Treaty, an international patent treaty
 * Pennsylvania College of Technology
 * Phi Chi Theta, fraternity
 * Presbyterian Church in Taiwan
 * Production car trial, a type of classic trial or off-road motor car rally
 * Territorial Control Plan (Plan Control Territorial), Salvadoran anti-gang security policy