AHA or aha may refer to:
In Hindu mythology, Ahalya (Sanskrit: अहल्या, IAST Ahalyā), also known as Ahilya, is the wife of the sage Gautama Maharishi.
Ahamansu, pronounced Ahamasu or Ahamanso, is a farming community in the Kadjebi District of the Volta Region, Ghana.
The Aharonov–Bohm effect, sometimes called the Ehrenberg–Siday–Aharonov–Bohm effect, is a quantum mechanical phenomenon in which an electrically charged particle is affected by an electromagnetic potential (V, A), despite being confined to a region in which both the magnetic field B and electric field E are zero.
Aharon Razin (Hebrew: אהרון רזין) (born April 6, 1935) is an Israeli biochemist.
Ahammadkati (also spelled Ahammedkati or Ahmadkati, Bengali: আহমদকাটী) is a village and mouza in Gaurnadi Upazila in the Barisal District of southern-central Bangladesh.
Ahaxe-Alciette-Bascassan (Basque: Ahatsa-Alzieta-Baskazane) is a French commune in the Pyrénées-Atlantiques department in the Nouvelle-Aquitaine region in southwestern France.
The AHA Foundation is a nonprofit organization for the defense of women's rights. It was founded by Ayaan Hirsi Ali in 2007 and is based in New York, New York, United States.
Ahani v Canada (Minister of Citizenship and Immigration)  1 S.C.R. 72; 2002 SCC 2 is a significant decision of the Supreme Court of Canada in the areas of constitutional law and administrative law.
Ahandan (Persian: آهندان, also Romanized as Āhandān) is a village in Ahandan Rural District, in the Central District of Lahijan County, Gilan Province, Iran.