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OAO

OAO, a three letter acronym, may stand for: Fin-tech- online account opening

  • Orbiting Astronomical Observatory, the name of four NASA scientific satellites
  • Open Joint-Stock Company , business incorporation in Russia, Ukraine etc.
  • Odessey and Oracle, 1968 album by The Zombies
  • Oddworld: Abe's Oddysee a platform game made by Oddworld Inhabitants released in 1997
  • Over and Out (disambiguation), various meanings including the usual ending of transmissions in telecommunications
  • Open access operator, a British passenger rail company which does not hold a franchise