Pia
Pia or PIA may refer to:

Places
Pia, Pyrénées-Orientales, a French commune
Pia, Iran, a village in Razavi Khorasan Province, Iran
PIA Township, a Pakistan International Airlines staff township, Pakistan
614 Pia, an asteroid

People
Pia (given name), a feminine given name
Pia (surname)
Piá (footballer, born 1982), Brazilian footballer João Batista Inácio
Piá (footballer, born 1973), Brazilian football player and manager Reginaldo Revelino Jandoso
Pia Pounds, stage name of Ugandan recording artist Tracy Kirabo (born 1996)
Pia Ravenna, stage name of Finnish opera singer Hjördis Sophie Tilgmann (1894-1964)
Pia (powerlifter), a Paralympic powerlifter from Laos - see Powerlifting at the 2016 Summer Paralympics – Men's 49 kg

Science and technology
para-Iodoamphetamine, a research chemical
Peripheral Interface Adapter, an integrated circuit
Pia mater, a layer of the meninges of the brain and spinal cord
Purified isophthalic acid, an aromatic dicarboxylic acid
Tacca leontopetaloides, a species of flowering plant also known as Pia

Aviation
Pacific Island Aviation, a former airline headquartered in Saipan, Northern Mariana Islands
Pakistan International Airlines (abbreviation and ICAO designator)
Pearson International Airport, Toronto, Ontario, Canada
General Wayne A. Downing Peoria International Airport (IATA code and FAA location identifier), Peoria, Illinois, US
Peruvian International Airways, an international airline that operated from 1947 to 1949
Plattsburgh International Airport, NY, US
Penang International Airport, Penang, Malaysia

Organisations
Pasteur Institute of Algeria
Philippine Information Agency, the main development communication arm of the government
Pittsburgh Institute of Aeronautics, Pittsburgh, Pennsylvania, US
Planning Institute Australia
Princeton in Asia, a nonprofit organization
Printing Industries of America
Private Internet Access, a virtual private network provider
Puntland Intelligence Agency, Somalia
Pakistan Airlines (PIA), Paki airline company

Law
Proprietary information agreement or non-disclosure agreement
Personal Information Agent, an individual authorized in dealings with third persons
Post-indictment arraignment, US
Primary Insurance Amount, in regards to benefits payable under Title II of the Social Security Act
Personal Insolvency Arrangement, a statutory mechanism in Ireland

Other uses
Baroudeurs de Pia XIII or Pia Donkeys, a rugby league club based in Pia, Pyrénées-Orientales, France
Privacy Impact Assessment, used to identify and minimize the privacy risks of new projects or policies
Papers from the Institute of Archaeology, an academic journal
PIA F.C., a football club based in Karachi, Pakistan
PIA Model Secondary School, a school in PIA Township, Pakistan
PIA Planetarium (disambiguation), three planetariums in Pakistan
Proto-Indo-Aryan language, a reconstructed language ancestral to the Indo-Aryan languages
Pia (band), a Korean rock band
Pia (horse), a Thoroughbred racehorse
Pia Carry, a lifesaving technique
Pia Film Festival, a Japanese film festival

See also
Porta Pia, a gate in the Aurelian Walls of Rome, Italy
Casina Pio IV or Villa Pia, Vatican City
PIAS (disambiguation)
Piia, a feminine given name
Namahana Piʻia (1787–1829), a wife of King Kamehameha I of Hawaii
PIIA, Pakistan Institute of International Affairs