Au

Au, AU or au may refer to:

Science

• Absorbance unit, a reporting unit in spectroscopy
• Astronomical unit, an approximation for the average distance between the Earth and the Sun
• Atomic units, a system of units convenient for atomic physics and other fields
• Gold, a chemical element with the symbol Au
• Arbitrary unit, a relative placeholder unit for when the actual value of a measurement is unknown or unimportant

Computing

• .au, the internet country code for Australia
• Au file format, Sun Microsystems' audio format
• Audio Units, a system level plug-in architecture from Apple Computer
• Adobe Audition, a sound editor program.
• Automatic Updates, also known as Windows Update.

Universities

United States

• Adelphi University in Garden City, New York
• Alfred University in Alfred, New York
• American University in Washington, D.C.
• Anaheim University in Anaheim, California
• Anderson University in Anderson, Indiana
• Anderson University in Anderson, South Carolina
• Andrews University in Berrien Springs, Michigan
• Antioch University in Culver City, California
• Apollos University in Huntington Beach, California
• Arcadia University in Glenside, Pennsylvania
• Argosy University in Alameda, California
• Auburn University in Auburn, Alabama
• Aurora University in Aurora, Illinois

Canada

• Algoma University in Sault Ste. Marie, Ontario
• Athabasca University in Athabasca, Alberta

Other countries

• Air University (disambiguation) in various locations
• Aarhus University in Arhus, Denmark
• Akademia Umiejętności in Kraków, Poland
• Aberystwyth University in Aberystwyth, Wales, United Kingdom
• Allahabad University in Allahabad, Uttar Pradesh, India
• Andhra University in Visakhapatnam, AP, India
• Arellano University in Philippines
• Aletheia University in New Taipei City, Taiwan
• Auckland University in New Zealand

Geography

• Australia
• Au (Munich), Munich, Germany
• Au (Schwarzwald), Baden-Württemberg, Germany
• Au, Papua New Guinea
• Au, St. Gallen, Switzerland
• Au, Vorarlberg, Bregenz, Austria
• Au, Zurich, Switzerland
• Au peninsula, Switzerland
• Au, Guinea, Kankan Region
• Au am Leithaberge, Austria
• Au am Rhein, Germany
• Au im Bregenzerwald, Austria
• Au in der Hallertau, Germany

Organizations

• African Union
• au (mobile phone company), a mobile phone company in Japan
• Americans United for Separation of Church and State
• Austral Líneas Aéreas, IATA code

Entertainment

Music

• AU (band), an experimental pop group headed by Luke Wyland
• Au, a 2010 release by Scottish rock band Donaldson, Moir and Paterson
• AU, a North Irish music magazine, formerly Alternative Ulster

Other

• Au Co, a fairy in Vietnamese mythology
• Alternative universe (fan fiction)
• Age of Ultron, a 2013 series published by Marvel Comics

Sport

• Athletic Union, the union of sports clubs in a British university
• Aú, a cartwheel in the Brazilian martial art of Capoeira

Surname

• Au (surname), a Chinese family name

Miscellaneous

• Ab urbe condita (sometimes abbreviated as a.u.), Latin for "from the founding of the City" (Rome)
• Au (building), a building that has been squatted in Frankfurt, Germany
• Ford AU Falcon, a family car made in Australia
• Vought AU, post-WWII US Marines variant of the F4U corsair
• a'u, the Hawaiian name for the Pacific blue marlin