PC may stand for:

• Pachyonychia congenita, a genetic skin disorder
• Parsec, an astronomical measure of distance often shortened to pc
• Path connected, a concept in mathematical topology where two points are linked with a path
• Patrol craft, a small naval vessel generally designed for coastal defence duties
• Personal computer, a computer whose price, size, and capabilities make it useful for individuals
• Phosphatidylcholine, a phospholipid
• Photonic crystal, a photonic band gap material
• Polycarbonate, a plastic polymer
• Political correctness, language that appears calculated to provide a minimum of offense
• Police Constable (also "PC"), in the UK and Canada
• Posterior commissure, brain landmark commonly used in biomedical image processing
• Presbyterian Church (USA), a Christian denomination
• President's Counsel (Sri Lanka), a legal position in Sri Lanka
• Privy council, a body that advises the head of state of a nation
• Privy councillor, a member of a privy council
• Pro-choice, a self-description used by people who believe that women should have the legal right to have an abortion and the legal right to be protected from coerced or forced abortion
• Profit centre
• Program counter, a special register inside CPUs indicating where the computer is in its instruction sequence
• Progressive contextualization, a scientific method
• Protes'tant Conference, a loose association of Lutheran churches and churchworkers
• Proto-Celtic language, the reconstructed common ancestor of the Celtic languages
• , a standard connector type for photographic flash synchronization
• Pubococcygeus muscle

Codification

• Pacific Islands Trust Territory: ISO 3166 country code (obsolete since 1986; was split into Federated States of Micronesia, Marshall Islands, Northern Mariana Islands and Palau)
• "Patrol, Coastal", a US Navy hull classification symbol
• "Partly cloudy", a weather forecast designation mostly used in North American English newspapers
• Penn Central, a railroad in the United States (AAR reporting mark PC)
• Pitcairn Islands: FIPS PUB 10-4 territory code
• Production code number, a designation used to identify television episodes
• Probable cause

People

• P. Chidambaram, Finance minister of India
• , a D.J. and one of the collaborators in the Ninja Tune recording outfit DJ Food
• Phil Collins, an English musician
• Pierre Cardin, fashion designer

Product identification

• PC, a specific type of Mazda C engine
• President's Choice, a private label brand of Loblaw Companies Limited

Organizations

In political parties:

• Plaid Cymru, a Welsh nationalist political party
• Progressive Canadian Party, Canada's new progressive conservative party
• Progressive Conservative Association of Alberta, a conservative political party of the Canadian province of Alberta
• Progressive Conservative Party of Canada, a now-defunct Canadian centre-right conservative political party
• Progressive Conservative Party of Ontario, a conservative political party of the Canadian province of Ontario
• Porozumienie Centrum, now-defunct Polish right-wing political party
• Partido Comunista, the Chilean communist party

Other institutions:

• Phoenix College, a community college in Phoenix, Arizona
• Presbyterian College, in Clinton, South Carolina
• Providence College, a private four-year Catholic college in Providence, Rhode Island
• Pembroke College, Oxford, a constituent college of the University of Oxford
• Physique-Chimie, short for ESPCI, an egineering school in France

Other initialisms

• Piano concerto, a concerto for solo piano and orchestra
• Picture cover, a method of book binding in which the cover of the book has a picture relating to the contents
• Player character or playable character, a fictional character controlled by a human player, usually in role-playing games or computer games
• politically correct
• post cibum (Latin for "after meals"), a medical prescription shorthand
• Postcard or postal card, a thick, typically rectangular piece of paper intended for mailing
• , a measure of how many posts a member has made on an Internet forum
• Prime cost or variable cost, items that a client hasn’t specifically selected at the time of the contract but the builder or trades person has made an allowance for in the total price
• Process control, a statistics and engineering discipline that deals with architectures, mechanisms, and algorithms
• Professional corporation, frequently the corporate arrangement of law firms, architectural firms, and similar entities in the United States
• Public convenience, another name for a toilet
• Pocket ¢hange, a pricing game from The Price Is Right
• Picture Comment, a common initialism on the website MySpace
• The Petz Community for fans of the Petz computer games