O2

O2, o2, O₂, or O² may refer to:

Chemistry

• Oxygen in its molecular form (O₂)

Companies

• O2 Global Network, an international network for sustainable design
• O2TV, a Russian independent socially-political TV channel
• Telefónica Europe, a European telecommunications provider trading as O2 (typeset as O₂)
  • O2 (UK)
  • O2 (Ireland)
  • Telefónica Germany
  • O2 (Czech Republic)
  • O2 (Slovakia)
• O2 Wireless USA, the former name of H2O Wireless, a prepaid wireless service offered in the USA by Locus Telecommunications

Medicine

• O2 - Tablets containing Ofloxacin and Ornidazole, made by Medley Pharmaceuticals Ltd in India

Music

• O₂ (Tonéx album), the second album by gospel artist Tonéx, released in 2002
• O2: Avalon Remixed, the sixth album and first remix album by contemporary Christian band Avalon, released in 2002
• O2 (O-Town album), the second and final album by the band O-Town, released in 2002
• O2, a song on the Orange Range album Panic Fancy
• "O2", a song on the 2002 Sleater-Kinney album One Beat
• O₂ (FireHouse album), a 2000 album by the rock band FireHouse

Places

• O2 Arena (Prague), the renamed Sazka Arena in Prague, Czech Republic
• O2 Centre, an indoor shopping and leisure centre on Finchley Road, London
• The O2 (Dublin), a concert and event venue in Dublin, Ireland
• The O2 (London), a large entertainment district in London developed within the former Millennium Dome
  • The O2 Arena (London), the arena within The O2
• O2 Residence, a 41-floor tower part of the Jumeirah Lake Towers in Dubai, United Arab Emirates
• O2 Store, a chain of retail stores owned and operated by Telefónica Europe
• O2 World (Berlin), indoor arena in Berlin, Germany
• O2 World (Hamburg), indoor arena in Hamburg, Germany

Technology

• SGI O2, a Unix workstation computer
• UOC O2, UOC's institutional repository

Vehicles

• Douglas O-2, a military single-engine observation biplane
• Cessna O-2 Skymaster, a military twin-engine light aircraft
• Oldershaw O-2, glider
• SP&S Class O-2, a 1910 steam locomotives class
• USS O-2 (SS-63), a United States O class submarine
• O 2-class submarine of the Royal Netherlands Navy

See also

• 02 (disambiguation)
• Oz (disambiguation)