PC
- pC – (s) picocoulomb
- PC
- (s) petacoulomb
- U.S. Pacific Islands Trust Territory (ISO 3166 digram; obsolete 1986)
- (i) Personal computer
- Player Character (roleplaying)
- Politically Correct / Political Correctness
- post cibum (Latin, "after meals")
- PCAS – (i) Planet-Crossing Asteroid Survey
- PCB – see entry
- PCC
- (i) NATO Partnership Coordination Cell
- Posterior Cingulate Cortex
- Pre-Command Course
- Presidents Conference Committee
- PCCB – (i) Porsche Ceramic Composite Brake
- PCCIP – (i) President's Commission on Critical Infrastructure Protection
- PCE – (p) PerChlorEthylene
- PCI
- (s) U.S. Pacific Islands Trust Territory (ISO 3166 trigram; obsolete 1986)
- (i) Peripheral Component Interconnect (computer bus)
- PCIe – (i) Peripheral Component Interconnect Express (computer bus)
- PCL – (i) Passive Coherent Location
- PCMCIA – (i) Personal Computer Memory Card International Association (People Can't Memorise Computer-Industry Acronyms)
- PCN – (s) Pitcairn Islands (ISO 3166 trigram)
- PCP
- (p) phencyclidine
- Pneumocystis jiroveci pneumonia (formerly Pneumocystis carinii)
- (i) Probabilistically Checkable Proof
- PCPI – Physician Consortium for Performance Improvement (AMA)
- PCR – (i) Polymerase chain reaction
- PCSSD - (p) Pulaski County Special School District
- PCT
- (i) Pacific Crest Trail
- Patent Cooperation Treaty
- PCTE
- (i) Portable Common Tool Environment
- (i) Punjab College of Technical Education
- PCZ – (s) Panama Canal Zone (ISO 3166 trigram; obsolete 1980)
Read more about this topic: List Of Acronyms And Initialisms: P