PAC

PAC or Pac may refer to:

In government or politics:

• Pan Africanist Congress, a political party in South Africa
• Citizens' Action Party, a political party in Costa Rica
• Patriot Advanced Capacity, the United States' primary surface-to-air missile and modified for anti-missile defense
• Polish American Congress
• Political action committee, in the United States, a group organized to elect or defeat political candidates
• Public Accounts Committee, a British parliamentary committee responsible for overseeing government expenditures
• Public Affairs Committee, a political organization in Malawi

In education:

• Presidents' Athletic Conference, an NCAA Division III athletic conference of small private colleges
• Postgraduate Applications Centre, an organisation in Ireland
• Prince Alfred College, a secondary college in Adelaide, Australia
• Panasonic Academic Challenge
• PAC-10, a NCAA Division I athletic conference

In medicine:

• Premature atrial contraction

In technology:

• Proxy auto-config, auto-config script for Internet proxies
• Programmable automation controller in the motion control industry.
• Plasma aldosterone concentration.
• Porting Authorisation Code, issued by network providers to support Local number portability
• Probably approximately correct learning (PAC learning), a machine learning framework
• Perturbed Angular Correlation, a particular type of spectroscopy
• Perceptual Audio Coding, an audio compression algorithm.
• P1-derived Artificial Chromosome, used in molecular biology
• An Online Public Access Catalogue
• Presentation-abstraction-control, a type of design pattern used in software engineering
• Pac-man

In business:

• Polar Air Cargo's ICAO code
• Pacific Aerospace Corporation, a New Zealand aircraft manufacturer
• Planned Amortization Class, a type of Collateralized mortgage obligation

In entertainment:

• A handle sometimes used by rapper Tupac Shakur
• Padiglione d'Arte Contemporanea (Modern art museum), a museum in Milan
• Performing arts center, a multi-use performance space
• Portland Art Center, an exhibition space in Portland, Oregon
• Pac (wrestler), a UK professional wrestler
• Pan Asian Coalition, one of the two playable factions in the computer game Battlefield 2142

Other uses

• An abbreviation for Pacific
• Pac Polish szlachta Family, Gozdawa Coat of Arms
• Pasukan Aturgerak Cepat or "Immediate Response Team", a Malaysian armed forces unit
• Pasadena Anarchist Collective, an Anarchist collective based in Pasadena, CA [1]
• Primitive Apostolic Christianity