IOU

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IOU or IOU is:

  • an English expression for promissory note (phonetically IOU and I owe you are identical)
  • an abbreviation for the Internationale Olympiajolle-Union , the class association of the Olympic boat class from 1936, see O-Jolle .
  • an abbreviation for the input output unit, part of the computer, see input and output
  • Name of a song from 1983 by the British band Freeez, see IOU (song)
  • an abbreviation for the International Ornithologists' Union (formerly International Ornithological Committee)