AU (disambiguation)

AU can mean these things: 

 Astronomical unit, A unit of distance used in Astronomy.
 Auburn University, A university in Alabama, USA.
 Al-Azhar University,  a university and mosque in Cairo, Egypt. It is the main centre of Arabic literature and Sunni Islamic learning in the world. It is also the world's second-oldest surviving university. 
 Anadolu University, a high-degree educational institution in Eskişehir, Turkey.
 Adamson University, a private Roman Catholic university in Manila, Philippines.
 Ariel University, a public university in Ariel, a Jewish settlement in the West Bank. It used to be called the "Ariel University Center of Samaria". 
 African Union, an international organization consisting of fifty-three African member countries. 
 Au, the symbol for the chemical element gold, a metal.
 .au, the Internet country code for Australia.
 AU, abbreviation of Alternate Universe.