AOA

Aoa, AOA, or AoA may refer to:

Government

 * Agreement on Agriculture, a World Trade Organization treaty
 * Administration on Aging, a health agency of the United States
 * Angolan kwanza, the currency of Angola
 * Auxiliary Organizations Association, an organized body related to the California State University system
 * Analysis of Alternatives, form of trade study used by the Department of Defense

Science and health

 * Aoa (genus), a genus of butterflies in the family Pieridae
 * Age of acquisition, a psycholinguistic term
 * Alpha Omega Alpha, a medical honor society
 * American Optometric Association, a health association
 * American Osteopathic Association, a medical association
 * Ammonia-oxidizing archaea performing oxidation of ammonia into nitrite (Nitrification)
 * Angle of arrival, direction from which a radio wave arrives at an antenna array
 * Angle of attack, a measure of a body through a fluid
 * Australian Orthopaedic Association, a not-for-profit organisation

Administration

 * Analysis of Alternatives, a method of analyzing choices
 * Articles of association, a document that establishes the basic details of a corporation
 * Activity on arrow, the activities on the arrows of the arrow diagramming method in project planning

Aviation

 * Air operations area, the area of an airport used for landing, takeoff, or surface maneuvering of aircraft
 * Airport Operators Association, a trade association for UK airport operators
 * American Overseas Airlines, a former transport company
 * Angle of attack, the angle between the chord line of the wing of a fixed-wing aircraft and the vector representing the relative motion between the aircraft and the atmosphere
 * Abort once around, a type of Space Shuttle abort mode

Entertainment

 * AOA (group), a South Korean girl group debuted in 2012
 * Act of Aggression, video game
 * Age of Apocalypse, a comic storyline
 * Aniplex of America, an anime licensor
 * Armies of Arcana, a tabletop war game
 * The Axis of Awesome, an Australian comedy band

Other

 * ʻAoa, a village in American Samoa
 * Adam-Ondi-Ahman, a sacred location for the Latter Day Saints
 * American Outlaws Association, a motorcycle club
 * Andrews Osborne Academy, a school
 * As-salamu alaykum, traditional meeting between Muslims, coined in late 90's by M. Shomail Haider


 * Automated online assistant, a program that attempts to assist users