Aha

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 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
 * 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)