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AHA, Aha, or aha may refer to:

Arts, entertainment and media

• a-ha, a Norwegian pop music band
• Aha (streaming service), an Indian service offering Telugu content
• Association of Hispanic Arts, a New York-based non-profit organization that promotes the work of Hispanic artists
• "Aha", a 2009 song by British singer Imogen Heap

Hockey

• Amateur Hockey Association, an amateur men's ice hockey league in Canada from 1886 to 1898
• American Hockey Association (1926–1942)
• American Hockey Association (1992–1993)
• Atlantic Hockey America, an NCAA Division I ice hockey conference with men's and women's divisions which operates primarily in the northeastern U.S.
• Atlantic Hockey Association, a men-only ice hockey conference which merged into the new Atlantic Hockey America in 2024

Organizations

• AHA Foundation, a nonprofit organization for the defense of women's rights
• Allianz vun Humanisten, Atheisten an Agnostiker, an association of humanists, atheists and agnostics based in Luxembourg
• American Heart Association, a non-profit organization in the US that promotes cardiac care
• American Hebrew Academy, an American Jewish pluralistic college preparatory boarding school
• American Historical Association, the oldest and largest society of historians in the US
• American Homebrewers Association, an American trade group concerned with the promotion of craft beer and homebrewing
• American Hospital Association, a trade group founded in 1898 to the promote health care industry
• American Humane Association, an organization founded in 1877 dedicated to the welfare of animals and children
• American Humanist Association, an educational organization in the US that advances secular humanism
• Arabian Horse Association, an organization that registers Arabian horses in the US
• Area health authority, a former type of administrative organisation of the NHS in England and Wales
• Association of Hispanic Arts, a New York-based non-profit organization that promotes the work of Hispanic artists
• Atlanta Housing Authority, an organization to develop, acquire, lease and operate affordable housing
• Australian Hotels Association, an employer advocacy and lobby group representing hoteliers around Australia

People

• Hor-Aha, a First Dynasty Egyptian pharaoh
• Rabbi Aha, fourth century rabbi in the Land of Israel
• Aha bar Jacob, third or fourth century Babylonian rabbi
• Aha b. Rava, fourth or fifth century Babylonian rabbi
• Achai Gaon, also known as Aha of Shabḥa, eighth century Talmudist and scholar

Science and technology

• Alpha hydroxy acid, a class of chemical compounds that consist of a carboxylic acid substituted with a hydroxyl group on the adjacent carbon
• Aha (wasp), a genus of Australian wasp
  • Aha ha, an Aha species abbreviated as A. ha
• Avoid hasty abstractions, a computer programming methodology

Other uses

• Aboriginal Heritage Act 1972, Western Australian legislation also known as the AHA
• Aboriginal Heritage Act 1988, South Australian legislation also known as the AHA
• Aboriginal Heritage Act 2006, legislation of the state of Victoria, Australia, also known as the AHA
• Aha, an Egyptian phrase found on the Rhind Papyrus
• Aha (Book of Mormon), a Nephite soldier
• Ahanta language (ISO 639-3 code AHA)

See also

• Aha! (disambiguation)
• AAHA (disambiguation)
• Aahaa (disambiguation)
• Aha experience, an insight that manifests itself suddenly
• Aha Khani, a village in Hormozgan Province, Iran

• Disambiguation pages