Ro
Ro or RO may refer to: == Businesses and organizations == Ro (company), an American telehealth company Royal Ordnance, a British armaments manufacturer TAROM, a Romanian airline, IATA airline code RO == Places == Rø, Denmark Ro, Emilia-Romagna, Italy Ro, Greece, a small Greek island Romania (ISO 3166-1 country code RO) == Science and technology == .ro, Internet country code top-level domain for Romania Ro (antigen) Autoantigen Ro, a protein Ro (volume), an Egyptian unit of measurement Radio occultation, a technique for measuring the properties of an atmosphere Reactor operator, a person who controls a nuclear reactor Reverse osmosis, a water purification process Receive only, a type of teleprinter Anti-SSA/Ro autoantibodies (anti–Sjögren's-syndrome-related antigen A autoantibodies) == Other uses == Ro (kana), a Japanese character Ro (name), a given name, nickname and surname Ro (dubious Danish king) Ro (pharaoh) or Iry-Hor (fl. c.