REO

REO may refer to:

• Real Estate Owned
• REO Motor Car Company
  • Ransom E. Olds, its founder
  • Reo Speed-Wagon, truck
• REO Speedwagon rock band
  • REO Speedwagon (album) their 1971 debut album
  • R.E.O./T.W.O. their second album
  • R.E.O. their sixth album.
• The FAA identifier for Rome State Airport in Rome, Oregon
• Rare earth oxide

Reo may refer to:

• Rio de Janeiro, a city in Brazil on the Atlantic coast
• Reo Coordination Language
• Réo, town in Burkina Faso
• Reo, Estonia, village in Pihtla Parish, Saare County, Estonia
• Don Reo, television writer and producer
• Reo (spider), spider genus (Mimetidae)
• reo, Maori word meaning voice or language, as in te reo Māori
• Kōhanga Reo (pre-school language-recovery movement)
• reo, colloquial Australian term for rebar