'''AAU''' most commonly {{cn|date=February 2026}} refers to: * Association of American Universities, a selective group of 71 major research universities in North America
'''AAU''' may also refer to: {{TOC right}}
==Aviation== * IATA airport code for Asau Airport in Vaisigano District, Samoa
==Education== * Aalborg University, in Denmark * Academy of Art University, in San Francisco, California, United States * Addis Ababa University, in Ethiopia * Allied American University, Laguna Hills, California, United States * Alpen-Adria-University of Klagenfurt, in Austria * Anand Agricultural University, in Anand, Gujarat, India * Anglo-American University, in Prague, Czech Republic * Antillean Adventist University, in Mayagüez, Puerto Rico * Assam Agricultural University, in Jorhat, Assam, India * Association of African Universities
==Healthcare== * Acute assessment unit, in a UK hospital * Acute anterior uveitis, an inflammation of the middle layer of the eye
==Other uses== * AAU, a codon for the amino acid asparagine * Abau language, a language of Papua New Guinea * Allgemeine Arbeiter-Union – Einheitsorganisation, a German communist organisation * Alpha acid unit, a measure of the bitterness of hops used in brewing beer * Amateur Athletic Union, an amateur sports organization in the United States * Amendment to allege use, a legal term * Assigned amount units, emission allowances created and allocated under the Marrakech Accords of the Kyoto protocol * Americanos U.S.A., an American bus company
{{disambiguation}}