RO

RO or ro refer to:

Places

Brazil

• Rondônia, a state in Brazil

Greece

• Ro, Greece, an island in Dodecanese Prefecture, South Aegean

Italy

• Ro, Emilia–Romagna, a comune in the Province of Ferrara

Romania

• Romania, ISO 3166-1 country code
  • .ro, the country code top level domain (ccTLD) for Romania

People

• Randy Orton, an American wrestler
• Ro (name), a diminutive form of the Irish given name Ronan
• Ro (pharaoh), an Egyptian pharaoh

Arts and entertainment

• Ragnarok Online, a South Korean computer game
• Red Orchestra: Combined Arms, a modification for the American computer game Unreal Tournament 2004
• Red Orchestra: Ostfront 41-45, an American computer game
• Regnum Online, an Argentinian computer game
• RO (game), an American puzzle video game
• Ro Laren, a character in the American TV series Star Trek: The Next Generation

Acronyms

• Junior Reserve Officers' Training Corps, an American armed forces training program
• Radical Orthodoxy, an English Christian theology
• Radio occultation, a technique for measuring the properties of an atmosphere
• Reach Out (non-profit), an Australian information website
• Read-only access, a computer software attribute
• Read-only memory (ROM), a computer storage medium
• Receive only, a type of teleprinter
• Red Orchestra (espionage), a series of Soviet espionage rings
• Relaxation oscillator, an electronic oscillator
• Renewables Obligation, a British order requiring electricity generation from renewable sources
• Reserve Officers' Training Corps, an American armed forces training program
• Restraining order, a form of legal injunction
• Reverse osmosis, a filtration method
• Right only, a method of manipulating stereophonic sound
• RO (airline), a code for the Romanian airline TAROM
• RO (country), a country code for Romania
• ro (language code), a code for the Romanian language
• Royal Ordnance, a British armaments manufacturer
• Russian Orthodox, a Russian church
• Rough Opening, Framing (construction)

Other uses

• Autoantigen Ro, a protein
• Ro (kana), a Japanese character
• Ro (language), an American artificial language
• Ro (title), a Fijian noble title
• Ro (volume), an Egyptian unit of measurement

See also

• R0 (disambiguation)
• Rho (disambiguation)
• ROH (disambiguation)
• Ro-ro