POA may refer to:

Organisations

• Pakistan Olympic Association
• POA (trade union), for UK prison officers
• Prison Officers' Association (Ireland)
• Russian Liberation Army

Science and technology

• Poa, a genus in Poaceae (the grass family)
• Place of articulation, a linguistic term
• Pony of the Americas, a horse breed
• Portable Object Adapter, in the CORBA specification
• Preoptic area, a brain region
• Price of anarchy, a concept in game theory
• Program of Activities, for UNFCCC Clean Development Mechanism
• Proof-of-authority, a blockchain algorithm

Law

• Power of attorney
• Public Order Act
• Property owner association or homeowner association

Music

• Paris Opera Awards
• POA (album), 1973, by Blocco Mentale
• "POA", a song from Future (Future album)
• P.O.A: Pop on Arrival, 2005 album by Beat Crusaders

Places

• Poa, Bazèga, Burkina Faso
• Poa, Boulkiemdé, Burkina Faso
• Poá, São Paulo, Brazil
• Pacific Ocean Areas, World War II commands
• Po Lam station, Hong Kong, China, station code
• Salgado Filho International Airport, Porto Alegre, Brazil, IATA code

Other

• Price on application, abbreviation
• Plan of Action, abbreviation