AUS or Aus can refer to:
- Australia using ISO 3166-1 alpha-3 country code
- Assam University, Silchar
- American University of Sharjah
- Application Update Service, the service for updating Mozilla products
- Aqueous Urea Solution, see AdBlue
- Army of the United States, the wartime conscription component of the United States Army
- Association of University Staff of New Zealand
- Atlantic University Sport, the governing body for university sport in Canada's Atlantic provinces
- Augusta Southern Railroad
- Augusta and Summerville Railroad
- Austin-Bergstrom International Airport in Austin, Texas
- Assam University Silchar a Central University in India.
- Aus, Namibia, a village in Namibia about 120 km east of Luderitz, with an approximate population of 200
- Australian Union of Students
- Ā.U.S., Ānkh, Utcha, Senb (Ā.U.S.) for the Ancient Egypt phrase: "Life, Prosperity, Health"
- Banu Aus - one of the Arabian tribes that interacted with Muhammad
Read more about AUS: People