Science and technology

• Odor threshold value a measure of odor intensity
• Orbital Test Vehicle, another name for the Boeing X-37
  Boeing X-37
  The Boeing X-37 is an American unmanned vertical-takeoff, horizontal-landing spaceplane. The X-37 is operated by the United States Air Force for orbital spaceflight missions intended to demonstrate reusable space technologies...
  
   unmanned spacecraft
• Orbital transfer vehicle, a space tug used to move a spacecraft from one orbit to another
• Outer Tactical Vest
  Interceptor body armor
  Interceptor Body Armor is the United States Army's primary bulletproof vest. The Interceptor design replaced the older fragmentation protective Personnel Armor System for Ground Troops body armor system, introduced in the early 1980s...
  
  , part of the Army Combat Uniform
• Overlay Transport Virtualization, a technique used to transport ethernet frames inside IP packets
• Ozone tagging velocimetry, a modified hydroxyl tagging velocimetry
  Hydroxyl tagging velocimetry
  Hydroxyl tagging velocimetry is a velocimetry method used in humid air flows. Themethod is often used in high-speed combusting flows because the high velocity and temperature...
  
  

TV stations and companies

• Oglinda TV
  Oglinda TV
  OTV is a controversial Romanian TV channel owned by Dan Diaconescu, best known for its talk show, "Dan Diaconescu Live". It was banned between 2002 and 2003, officially for inciting to racial hatred and calling for discrimination during an unmoderated show with extreme-right politician Corneliu...
  
  , a television station from Bucharest, Romania
• Okinawa Television
  Okinawa Television
  , also known as OTV, is a Japanese broadcast network affiliated with the FNN. Their headquarters are located in Okinawa Prefecture.-Headquarters:*1-2-20 Kumoji Naha-city, Okinawa 900-8588 Japan*Telephone Number:+81-98-863-2111-History:...
  
  , a station part of the Fuji News Network in Japan
• OpenTV
  OpenTV
  OpenTV is an interactive television company founded in 1994. Its main business involves the sale of set-top-box operating systems and software. On March 28, 2010 OpenTV became a fully owned subsidiary of the NAGRA Kudelski Group and officially delisted from the NASDAQ, where it was previously...
  
  , an interactive television company from San Francisco, USA
• Orascom TV
  Orascom TV
  Orascom TV, better known as OTV, is an Egyptian television channel broadcast on the Nilesat. OTV is owned by Orascom. OTV was launched on January 31, 2007 at 18:30 p.m...
  
  , a television station from Egypt broadcast on Nilesat, owned by Orascom
• OrissaTV
  OrissaTV
  Orissa TV or OTV is a regional Oriya language Indian cable television station. It is the flagship channel of the Bhubaneswar-based Orissa Television Network.It was started and promoted by Mrs Jagi mangat Panda...
  
  , TV stations owned by Ortel Communications Ltd., Bhubaneswar, Orissa
• OTV (Lebanon), a Lebanese television station
• OTV (Shanghai Media Group), TV stations owned by Shanghai Media Group
  Shanghai Media Group
  Shanghai Media Group , under the Shanghai Media & Entertainment Group , is a multimedia television and radio broadcasting, news and Internet company...
  
   in China
• Otvorena televizija, a former TV station in Zagreb
  Zagreb
  Zagreb is the capital and the largest city of the Republic of Croatia. It is in the northwest of the country, along the Sava river, at the southern slopes of the Medvednica mountain. Zagreb lies at an elevation of approximately above sea level. According to the last official census, Zagreb's city...
  
  , Croatia
  Croatia
  Croatia , officially the Republic of Croatia , is a unitary democratic parliamentary republic in Europe at the crossroads of the Mitteleuropa, the Balkans, and the Mediterranean. Its capital and largest city is Zagreb. The country is divided into 20 counties and the city of Zagreb. Croatia covers ...
  
  , now called Jabuka TV
  Jabuka TV
  Jabuka TV , formerly Otvorena televizija , is a TV station in Zagreb, Croatia....
  
  

Other

• Omnium de Traitement et de Valorisation, a subsidiary of Veolia Environnement
• One True Voice
  One True Voice
  One True Voice were a British boyband created on the ITV television series Popstars: The Rivals, which also produced girl group Girls Aloud. The band was created by the public, who voted for their favourite hopefuls each week...
  
  , a British boyband