U0 may refer to:

  • Ultra Air (former IATA code: U0), a former Colombian low-cost airline
  • N53B30-U0, a 3.0-litre model of the BMW N53 engine released in September 2007
  • Oberursel U.0, an engine equipping the 1915 German Fokker E.II fighter aircraft
  • Vacuum permeability (μ0), a constant in physics

See also

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