Au, AU, au or a.u. may refer to:

Science and technology edit

Computing edit

Physics and chemistry edit

  • Gold, chemical symbol Au
  • Absorbance unit, a reporting unit in spectroscopy
  • Atomic units, a system of units convenient for atomic physics and other fields
  • Ångström unit, a unit of length equal to 10−10 m or 0.1 nanometre.
  • Astronomical unit, a unit of length used in planetary systems astronomy
  • Arbitrary unit, a placeholder unit for when the actual value of a measurement is unknown or unimportant

Arts and entertainment edit

Music edit

  • AU (band), an experimental pop group headed by Luke Wyland
  • Au, a 2010 release by Scottish rock band Donaldson, Moir and Paterson
  • Au a track on Some Time in New York City by an album by John Lennon & Yoko Ono and Elephant's Memory

Magazines edit

Other media edit

Organizations edit

Universities edit

Asia edit

Europe edit

Oceania edit

North America edit

Other edit

Places edit

Austria edit

Germany edit

Switzerland edit

Vehicles edit

  • Ford Falcon (AU), a family car made in Australia
  • Vought AU, a post-World War II US Marine Corps variant of the F4U Corsair aircraft

Other uses edit

  • , a cartwheel in the Brazilian martial art of Capoeira
  • Au (surname), a Chinese family name
  • Au language
  • Ab urbe condita (sometimes abbreviated as a.u.), Latin for "from the founding of the City" (Rome)
  • a'u, the Hawaiian name for the Pacific blue marlin