AAU
- Aalborg University
- Abau language
- Academy of Art University
- Acute assessment unit
- Addis Ababa University
- Allgemeine Arbeiter-Union – Einheitsorganisation
- Allied American University
- Alpha acid
- Amateur Athletic Union
- Amendment to allege use
- Americanos U.S.A.
- Anand Agricultural University
- Anglo-American University
- Antillean Adventist University
- Asau Airport
- Assam Agricultural University
- Assigned amount units
- Association of African Universities
- Association of American Universities
- University of Klagenfurt