PAA
PAA may refer to:
Businesses and organizations
- Pacific American Airlines
- Pamoja African Alliance, a Kenyan political party
- PanAfrican Archaeological Association
- Pan African Association
- Pan American World Airways, commonly known as Pan Am
- Pan American Association of Anatomy
- Pittsburgh Athletic Association, athletic and social club
- Polish American Association
- Population Association of America, dedicated to population and demography studies
- Portland Adventist Academy, an Adventist High School
Science, technology and mathematics
Chemistry and materials science
- Peroxyacetic acid, a chemical
- Phenylacetic acid, a chemical
- Phosphoamino acid analysis, a biochemistry technique
- Polyacrylamide, an acrylate polymer
- Polyacrylic acid, an acrylic polymer
- Primary Aromatic Amine, a group of compounds
Electronic devices
Statistics
- Piecewise Aggregate Approximation, dimension reduction method
Legislation
- Perpetuities and Accumulations Act 1964, UK act of Parliament
- Perpetuities and Accumulations Act 2009, UK act of Parliament
- Protect America Act of 2007, amendment to the US Foreign Intelligence Surveillance Act
Other uses
- Penny Arcade Adventures, video game series
- Prueba de Aptitud Académica, standardized test for university admissions
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