PIA is an abbreviation for:

• IATA code for the General Wayne Downing Peoria International Airport in Peoria, Illinois
• ICAO code for Pakistan International Airlines, the flag carrier of Pakistan
• Pacific Island Aviation
• Papers from the Institute of Archaeology, an academic journal published by the Insititute of Archaeology, University College London
• Parachute Industry Association
• Personal Information Agent
• Pearson International Airport, Toronto, Ontario (IATA: YYZ, ICAO: CYYZ)
• Peripheral Interface Adapter, an integrated circuit such as the Motorola MC6820
• Personal Investment Authority (United Kingdom)
• Peruvian International Airlines, an international airline that operated from 1947 to 1949.
• The Philippine Information Agency
• Post-Indictment Arraignment
• Primary Insurance Amount, in regards to benefits payable under Title II of the Social Security Act
• Printing Industries of America
• Prison Industry Authority (California)
• Privacy Impact Assessment
• Primary Interop Assembly, a type of .NET assembly dealing with interaction between managed code and COM objects
• Programmable Interconnect Array
• Proprietary Information Agreement, also known as Non-disclosure agreement
• Purified Isophthalic Acid, an aromatic dicarboxylic acid
• Pristane induced arthritis (a rheumatoid arthritis model in rats)

See also:

• Pia

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