AIA

AIA or A.I.A. or Aia may refer to:

Aia

 * Aia, a small town in the province of Gipuzkoa, Spain
 * Peñas de Aya, small mountain range in Oiartzun, Gipuzkoa
 * Aia, current Kutaisi, ancient capital of Colchis
 * Aia, another name for Aea (Malis), an ancient town in Greece
 * Aia, the collected edition of E. C. Vivian's 1920s novels Fields of Sleep and People of the Darkness
 * Saint Aia (died c. 711), Belgian Catholic saint also known as Aye

Academia

 * Abstract Intelligent Agent, a generalization and a hypothetical essence of human intelligence
 * Archaeological Institute of America
 * Arizona Interscholastic Association
 * Art Institute of Atlanta, a private fine-art college
 * Association for Industrial Archaeology, a body supporting the archaeology of industry in Britain
 * Artists' International Association

Statutes and treaties

 * Access to Information Act, a Canadian freedom of information act
 * Leahy-Smith America Invents Act
 * Anglo-Irish Agreement, a 1985 agreement between the governments of Ireland and the UK, aimed at bringing an end to The Troubles
 * Anti-Injunction Act, a US federal law

Aerospace

 * Aerospace Industries Association
 * American International Airways, now known as Kalitta Air
 * Avies, an Estonian airline (ICAO code: AIA)

Airports

 * Adelaide International Airport
 * Alliance Municipal Airport in Alliance, Nebraska (IATA Code: AIA)
 * Asuncion International Airport, in Luque, Asuncion, Paraguay
 * Athens International Airport, serving Athens, the Greek capital
 * Auckland Airport in Auckland, New Zealand

Sport and entertainment

 * Aliens in America, an American comedy TV show
 * Arizona Interscholastic Association, an Arizona high school athletics association
 * Asociación Iberoamericana de Atletismo, the governing body for the sport of athletics of European, Latin-American, and African countries with Iberian origin and/or Spanish or Portuguese language
 * Athletes in Action, an evangelical sports ministry
 * Autódromo Internacional do Algarve, a motor-racing track in Portugal

Business

 * American Insurance Association
 * AIA Group, a Hong Kong insurance and finance corporation
 * Amerindo Investment Advisors, a financial-services company
 * Annual investment allowance, a type of capital allowance in accounting

Technology and engineering

 * Application Integration Architecture, an integration framework marketed by Oracle Corporation
 * Atmospheric Imaging Assembly, an instrument that provides imaging of the Sun's corona on the Solar Dynamics Observatory
 * Automated Imaging Association
 * Authority Information Access
 * Automated immunoassay

Professional bodies and qualifications

 * Alliance of Independent Authors
 * American Institute of Architects
 * Associate of the Institute of Actuaries
 * Association of International Accountants
 * Australian Institute of Architects
 * Afghan Interim Administration
 * America's Infrastructure Alliance

Other

 * Anguilla, from its ISO 3-letter country code
 * Air Intelligence Agency, the former name of the Air Force Intelligence, Surveillance and Reconnaissance Agency of the United States