PTC may refer to:

• Pacific Theological College, in Suva, Fiji
• Parent-teacher conference
• Pilot Training College, a former organisation in Ireland and the US
• Pittsburgh Technical College, a 2-year college in Pittsburgh, PA, US
• Police Training Centre, Bangladesh
• Portage Trail Conference, an association of public schools in Ohio, US
• Presbyterian Theological College, Victoria, Australia
• RAF Personnel and Training Command, 1994–2007

• Papillary thyroid cancer, the most common type of thyroid cancer
• Percutaneous transhepatic cholangiography, an X-ray technique for the biliary tract
• Pseudotumor cerebri or idiopathic intracranial hypertension, a brain disorder

• Pacific Telecommunications Council, a telecommunications industry trade association for the Pacific Rim
• Pakistan Telecommunication Company Ltd, KSE code
• Pakistan Tobacco Company
• Partido Trabalhista Cristão (Christian Labour Party), a political party in Brazil
• Partit del Treball de Catalunya (Party of Labour of Catalonia), a communist party in Catalonia, Spain
• Polska Telefonia Cyfrowa, formal name of T-Mobile Polska
• PTC India, an Indian energy trading company
• PTC Punjabi, a television network in India
  • PTC Punjabi (Canada)
  • PTC Punjabi Film Awards
• Public Services, Tax and Commerce Union, UK, 1996–1998
• Public Transport Commission, in New South Wales, Australia
• Public Transport Corporation, in Victoria, Australia
• Public Transport Council, in Singapore
• Radio Television of Serbia (Радио-телевизија Србије), a public broadcaster in Serbia

• Parents Television Council, a U.S.-based advocacy group
• Pennsylvania Turnpike Commission
• Philadelphia Toboggan Coasters, roller coaster manufacturer, formerly Philadelphia Toboggan Company
• Philadelphia Transportation Company, 1940–1968
• Pioneer Theatre Company, Utah
• a type of patrol boat, for example Patrol torpedo boat PT-41
• PTC Inc., formerly Parametric Technology Corporation, a software company
• PTC Therapeutics, a pharmaceutical company

• Pakuwon Trade Center, a shopping center in Indonesia
• Pitcairn Islands (by ITU country code)
• Punggol MRT/LRT station, Singapore (by LRT code)

• Passive thermal control, a slow roll of a spacecraft on its horizontal axis to stabilize the thermal response to solar heating
• Patched, a protein receptor
• Peptidyl transferase centre, associated with protoribosomes and the possible origin of ribosomes and abiogenesis
• Phase-transfer catalyst, that facilitates interphase migration
• Phenylthiocarbamide, an organosulfur thiourea
• Poly(trimethylene carbonate), a derivative of trimethylene carbonate
• Positive temperature coefficient, of materials which increase resistance with temperature
  • Polymeric positive temperature coefficient (PPTC) device or resettable fuse
  • PTC heating element, a type of self-regulating heater
  • PTC thermistor, a type of resistor
• Positive train control, a type of train protection system
• Potential tropical cyclone, a term used since 2017 in NHC advisory products to describe a disturbance that is not yet a tropical cyclone

• Paid to click, payment for viewing advertisements
• Pass-Through Certificates, evidence of ownership of multiple Equipment Trust Certificates
• Piece to camera, spoken directly to a film or TV camera
• Players Tour Championship, in snooker
• Premium Tax Credit, Affordable Care Act provision
• Production tax credit, US, for renewable energy production

This disambiguation page lists articles associated with the title PTC.
If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article.