PCT
- Communist Party of Togo
- Congolese Party of Labour
- P.C.T
- PCT theorem
- Pacific Crest Trail
- Paleolithic continuity theory
- Patent Cooperation Treaty
- Patient care technician
- Pennsylvania College of Technology
- Pentachlorotoluene
- Perceptual control theory
- Person-centered therapy
- Personal Communication Telephone
- Phi Chi Theta
- Polychlorinated terphenyl
- Polycyclohexylenedimethylene terephthalate
- Porphyria cutanea tarda
- Post-coital tristesse
- Postcoital test
- Potomac Consolidated TRACON
- Pragmatic clinical trial
- Presbyterian Church in Taiwan
- Presbyterian Church of Tasmania
- Primary care trust
- Princeton Airport (New Jersey)
- Private Communications Technology
- Procalcitonin
- Progestogen challenge test
- Programmable communicating thermostat
- Projected capacitance
- Proton computed tomography
- Proximal convoluted tubule
- Territorial Control Plan
- Tunisian Communist Party