AHA, Aha, or aha may refer to:
Arts, entertainment and media
- Aha! (TV program), an information and education TV program in the Philippines
 - a-ha, a Norwegian pop music band
 - Aha! (film), a 2007 Bangladeshi film
 - Aha (streaming service), an Indian service offering Telugu content
 - Aha! (tabloid), a newspaper published in the Czech Republic
 - AHA! A Hands-On Adventure, a children's museum in Lancaster, Ohio
 - 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
 - Aha! Insight (1978), a book by Martin Gardner
 
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 Association, an NCAA Men's Division I Ice Hockey conference which operates primarily in the northeastern U.S.
 
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
 - 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
 
 
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
 - Ahah (Book of Mormon), a Jaredite
 - Aha Khani, a village in Hormozgan Province, Iran
 
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