# APC

APC most often refers to:
APC or Apc may also refer to:

## Computing and technology

* Auto Power Control, a system of powering e.g. laser diodes
* Adaptive predictive coding, an analog-to-digital conversion system
* Advanced process control, a concept in control theory
* Alternative PHP Cache, a PHP accelerator program
* Angled physical contact, a technique used in optical fiber connections
* APC (magazine), Australian Personal Computer magazine
* APC III or Advanced Personal Computer, a 1983 NEC microcomputer
* APC by Schneider Electric, formerly American Power Conversion Corporation or simply APC, a manufacturer of uninterruptible power supplies, electronics peripherals and data center products
* APC-7 connector, a coaxial connector used for high frequency applications
* Application Program Command, a C1 control code
* Asynchronous procedure call, a function that executes asynchronously in the context of a specific thread on Microsoft Windows
* Atari Punk Console, a simple DIY noisemaker circuit
* VIA APC, a low-cost Android PC computer

## Science
### General

* Article processing charge, a fee charged to authors for publication in an open access journal

### Biology and medicine

* Activated protein C, an anti-coagulant and anti-inflammatory protein
* Adenomatous polyposis coli, a tumor suppressor protein encoded by the APC gene, mutations in which can cause colon cancer
* Anaphase-promoting complex, a ubiquitin ligase cell cycle protein
* Antigen-presenting cell, a type of cell that displays foreign antigens
* Amino Acid-Polyamine-Organocation (APC) Family of transport proteins
* APC Superfamily, a superfamily of transport proteins
* APC tablet, analgesic compound of aspirin, phenacetin, and caffeine
* Argon plasma coagulation, an endoscopic technique for controlling hemorrhage
* Atrial premature complexes, a type of premature heart beat or irregular heart beat or arrhythmia which start in the upper two chambers of the heart
* Australian Plant Census, a plant database website

### Chemistry

* Allophycocyanin, a protein from the light-harvesting phycobiliprotein family
* Allylpalladium chloride dimer, a chemical compound
* Ammonium perchlorate, a powerful oxidizer used in solid rocket motors

## Military

* Armoured personnel carrier, type of armoured military vehicle
* Armour-piercing capped, an anti-armor shell type
* Army Proficiency Certificate, the training syllabus of the Army Cadet Force
* Brügger & Thomet APC (Advanced Police Carbine), a family of submachine guns and rifles produced by B&T AG
* Two US Navy hull classification symbols: Coastal transport (APC) and Small coastal transport (APc)

## Organizations

* Astroparticle and Cosmology Laboratory, a research laboratory located in Paris
* A.P.C., A French design group and clothing retailer
* African, Caribbean and Pacific Group of States, a group of countries
* African Paralympic Committee, a sports organization based in Cairo, Egypt
* African People's Convention, a South African political party
* Alianza Popular Conservadora, a political party in Nicaragua
* Alien Property Custodian, a former office within the Government of the United States
* All People's Congress, a political party in Sierra Leone
* All Progressives Congress, a political party in Nigeria
* Alternativa Popular Canaria, a separatist political party of the Canary Islands
* American Pie Council, an organization committed to preserving America's pie heritage
* American Plastics Council, a major trade association for the U.S. plastics industry
* Americas Paralympic Committee, an umbrella organization of National Paralympic Committees
* Anadarko Petroleum Corporation, a defunct American petroleum exploration company
* Animal Procedures Committee, a UK public body and task force
* Anti-Poverty Committee, a direct action organization in Vancouver, Canada
* Apocalypse Production Crew, an MP3 warez organization
* Arab Potash Company, a potash production company headquartered in Jordan
* Armed Proletarians for Communism, an Italian far-left terrorist group of the 1970s
* Arrangers' Publishing Company, a sheet music publishing company in the United States
* Asia Pacific College, a joint venture between IBM Philippines and the SM Foundation
* Asian Paralympic Committee, an umbrella organisation of National Paralympic Committees
* Associated Presbyterian Churches, a Scottish Christian denomination
* Association for Progressive Communications, a worldwide network of organisations helping others use the internet to promote social justice and sustainable development
* Association of Professional Chaplains, internationally certified hospice chaplains
* Australian Paralympic Committee
* Australian Polling Council, a polling industry body
* Patriotic Alliance for Change, a Paraguayan political alliance (Alianza Patriótica por el Cambio)

## Places

* Apc, Hungary, a village in the Heves County of Hungary
* Napa County Airport (IATA airport code APC), near Napa, California

## Other uses

* A Perfect Circle, an American rock supergroup
* Alkali Pozzolan Cement, an alternative cement developed at Curtin University, Australia
* Ambulatory Payment Classification
* Attoparsec, an unusual minuscule unit of astronomic distance
* Australian Provincial Championship, a rugby union competition in Australia
* Automatic Performance Control, a system that was used on some Saab H engines
* Average propensity to consume, the proportion of income spent
* Levantine Arabic, by ISO 639-3 code
** North Levantine Arabic, by a previously separate ISO 639-3 code, which has now been broadened to include Levantine Arabic
* Vincent's APC, a discontinued analgesic compound of aspirin, phenacetin and caffeine, once popular in Australia