• Oral Roberts University
  Oral Roberts University
  Oral Roberts University , based in Tulsa, Oklahoma, in the United States, is an interdenominational, Charismatic Christian, comprehensive university with an enrollment of about 3,790 students from 49 U.S. states along with a significant number of international students from 70 countries...
  
  , a university in Oklahoma
• Orbit Replaceable Unit
  Orbit Replaceable Unit
  An Orbital Replaceable Unit is a modular component of spacecraft that can be replaced upon failure by a robot or by an Extra-Vehicular Activity. The Hubble Space Telescope was designed with 70 such parts. The electrical system of the International Space Station also has such subsystems that...
  
  , used on the International Space Station
  International Space Station
  The International Space Station is a habitable, artificial satellite in low Earth orbit. The ISS follows the Salyut, Almaz, Cosmos, Skylab, and Mir space stations, as the 11th space station launched, not including the Genesis I and II prototypes...
  
  
• Orange & Rockland Utilities, a subsidiary of Consolidated Edison
  Consolidated Edison
  Consolidated Edison, Inc. is one of the largest investor-owned energy companies in the United States, with approximately $14 billion in annual revenues and $36 billion in assets...
  
   in New York
• Otago Rugby Union

Places in Estonia

• Oru Parish
  Oru Parish
  Oru is a rural municipality of Estonia, in Lääne County. It has a population of 932 and an area of 197.7 km².-Settlements:Oru Parish has 15 villages:...
  
  , municipality in Lääne County
• Õru Parish
  Oru Parish
  Oru is a rural municipality of Estonia, in Lääne County. It has a population of 932 and an area of 197.7 km².-Settlements:Oru Parish has 15 villages:...
  
  , municipality in Valga County
• Õru
  Õru
  Õru is a small borough in Valga County, southern Estonia. It's the administrative centre of Õru Parish. Õru has a population of 171 .The Tartu–Valga road passes through Õru....
  
  , small borough in Õru Parish, Valga County
• Oru, Lääne County
  Oru, Lääne County
  Oru is a village in Oru Parish, Lääne County, in western Estonia....
  
  , village in Oru Parish, Lääne County
• Oru, Ida-Viru County
  Oru, Ida-Viru County
  Oru is a village in Aseri Parish, Ida-Viru County in northeastern Estonia....
  
  , village in Aseri Parish, Ida-Viru County
• Oru, Harju County, village in Kose Parish, Harju County
• Oru, Kohtla-Järve, district of Kohtla-Järve
  Kohtla-Järve
  Kohtla-Järve is a city and municipality in north-eastern Estonia, founded in 1924 and incorporated as a town in 1946. The city is highly industrial, and is both a processor of oil shales and is a large producer of various petroleum products. The city is also very diverse ethnically: it contains...
  
  
• Oru Palace, former presidential residence in Toila
  Toila
  Toila is a small borough in northeastern Estonia. It is located in Ida-Viru county, some 10 km northeast from the town of Jõhvi. Toila is the administrative centre of Toila Parish and has a population of 896 .- Tourism :...
  
  , Ida-Viru County