PIA

PIA is an abbreviation for:
* IATA code for Greater Peoria Regional Airport in Peoria, Illinois
* ICAO code for Pakistan International Airlines, the flag carrier of Pakistan
* Papers from the Institute of Archaeology, an academic journal published by the Insititute of Archaeology, University College London
* 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,
* 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

See also:
*Pia