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 Administration for a Healthy America, a planned operating agency of the U.S. Department of Health and Human Services 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