UO

Not to be confused with U0 (disambiguation) (U followed by zero).

UO may stand for:

Arts and entertainment

• Call of Duty: United Offensive, an expansion pack for the popular first-person shooter computer game, Call of Duty
• Ultima Online, a graphical massively multiplayer online role-playing game
• Underoath, an American Christian metalcore band from Tampa, Florida
• Urge Overkill, an alternative rock band, formed in Chicago, United States

Businesses and organizations

Businesses

• Universal Orlando, a theme park resort in Orlando, Florida
• Urban Outfitters, a publicly traded American company
• Hong Kong Express Airways (IATA code: UO), an airline based in Hong Kong

Universities

• University of Okara, a public university in Okara, Punjab, Pakistan
• University of Oregon, a public research university in Eugene, Oregon, USA
• University of Osnabrück, public university in Osnabrück, Lower Saxony, Germany
• University of Otago, a public university in Dunedin, New Zealand
• University of Oradea, a public university in Oradea, Romania
• University of Ottawa, a public university in Canada
• University of Oxford, a public university in United Kingdom

Other organizations

• Orthodox Union, a kosher certification service which places a "U inside O" logo on food packaging

Other uses

• Unexploded ordnance, explosive weapons that did not explode when they were employed
• Urate oxidase, an enzyme that catalyzes the oxidation of uric acid to 5-hydroxyisourate

See also

• U of O (disambiguation)