PAC

• IATA code PAC Albrook "Marcos A. Gelabert" International Airport in Panama City, Panama
• Pacific Aerospace Corporation, New Zealand, manufacturer of aircraft:
• PAC 750XL
• PAC Cresco
• PAC CT/4
• PAC Fletcher
• Pakistan Aeronautical Complex, aerospace manufacturer
• Polar Air Cargo airline, Purchase, New York, US

• Panasonic Avionics Corporation, produces equipment and services for in-flight entertainment, etc.
• Peruvian Amazon Company, a former rubber company
• Planned Amortization Class, a type of collateralized mortgage obligation
• Programa de Aceleração do Crescimento, an investment plan in Brazil

• Panasonic Academic Challenge, a US national competition
• Postgraduate Applications Centre, Ireland
• Prince Alfred College, Australia
• Peres Academic Center, a private college in Israel

• Civil Defense Patrols (Patrullas de Autodefensa Civil), Guatemalan militia and paramilitary group
• Patriot Advanced Capability, of the MIM-104 Patriot missile
• Rapid Deployment Force (Malaysia), an armed forces unit

• Pac (wrestler) (born 1986), English professional wrestler
• Pac (family), of the Grand Duchy of Lithuania
• Tupac Shakur or Pac, 2Pac (1971–1996), American rapper

• Anti-Corruption Party (Partido Anti-Corrupción), Honduras
• Armed Proletarians for Communism (Proletari Armati per il Comunismo), a former Italian group
• Pan Africanist Congress, South Africa
• Partido Acción Ciudadana (disambiguation), several political parties in Latin America
• Peoples' Aman Committee, a criminal gang and welfare group associated with the Pakistan Peoples Party
• Political action committee, U.S. political fundraiser
• Political Affairs Committee (British Guiana)
• Polish American Congress
• Public Accounts Committee (India)
• Public Accounts Committee (Malaysia)
• Public Accounts Committee (United Kingdom)
• Public Affairs Committee (Malawi)

• Physician assistant, certified, commonly abbreviated in the USA as PA-C
• Plasma aldosterone concentration
• Post-abortion care
• Pre-anesthesia checkup
• Premature atrial contraction, a cardiac dysrhythmia
• Photoactivated adenylyl cyclase, a light-sensitive protein
• Proanthocyanidin, a type of flavanol
• Pulmonary artery catheterization

• Pacifica Coin, see List of TCP and UDP port numbers#Registered_ports
• Perceptual Audio Coder, a lossy audio compression algorithm
• Pin Array Cartridge, an integrated circuit packaging type
• Pointer Authentication Code, an ARM security feature
• Probably approximately correct, in machine learning
• Presentation–abstraction–control, in software architecture
• Programmable Automation Controller; see Computer appliance
• Proxy auto-config, a web browser technology

• Perturbed angular correlation
• Polyaluminium chloride, less effective than aluminium chlorohydrate for water treatment
• Porting Authorisation Code, to transfer mobile phone numbers
• Pseudo algebraically closed field (PAC field), in mathematics
• Powdered activated carbon, used in electrochemical regeneration
• Pure and Applied Chemistry, the official monthly journal of IUPAC

• Pennsylvania Athletic Conference, former name of the Colonial States Athletic Conference, an NCAA Division III collegiate athletic conference located in Pennsylvania, United States
• Pioneer Athletic Conference, a high school athletic conference located in Pennsylvania, United States
• Presidents' Athletic Conference, an NCAA Division III collegiate athletic conference located in the Appalachian region of the United States
• Pocket Athletic Conference, a high school athletic conference located in Indiana, United States

• Pac, Albania, a village in Bytyç, Albania
• Padiglione d'Arte Contemporanea, a museum in Milan, Italy
• Pan Asian Coalition, faction in the computer game Battlefield 2142
• Parent-Adult-Child, a model in transactional analysis
• Perfect authentic cadence, in music
• Performing arts center
• Providence Anime Conference, 2008
• Public assistance committee, former UK institutions for assisting the poor

• Pac-12 Conference (Pac-12), a US college athletic conference
• Pac-Man (disambiguation)
• Public Affairs Council (disambiguation)

{{disambiguation}}