UU

UU or uu may refer to:

Businesses

• United Utilities (LSE stock symbol UU)
• Air Austral (IATA airline code UU)

Language

• "uu", an old way of spelling the letter "w" in certain Germanic languages, including Old English
• The letter combination of uu

Science and technology

• UUNET, Internet Service Provider commonly referred to as 'UU'
• Unique users, may be counted as part of web analytics in determining the popularity of a website
• UMTS air interface or "Uu interface", which links User Equipment to the UMTS Terrestrial Radio Access Network
• Unix-to-Unix, as in uuencode, a data transport encoding
• .uu, a compressed archive file extension, associated with uuencode

Universities

• Ulster University in Northern Ireland
• Ulster University F.C.
• Union University in Jackson, Tennessee, United States
• University of Utah in Salt Lake City, Utah, United States
• Uppsala University in Sweden
• Utica University in Utica, New York, United States
• Utrecht University in the Netherlands
• Uttaranchal University in Uttarakhand, India

Other uses

• Union of Utrecht (Old Catholic), a federation of Old Catholic churches
• Unitarian Universalism, a theologically liberal religion characterized by its support for a "free and responsible search for truth and meaning."
• Unseen University, in the fictional Discworld novels of Terry Pratchett

<!-- * diuranium (U₂), the U-U chemical species -->

• UU, the production code for the 1968 Doctor Who serial The Mind Robber
• U'u a war club from Marquesas Islands
• Undead Unluck, a shorthand for the manga by Yoshifumi Tozuka
• Uudenkaupungin Urheilijat, a Finnish basketball team, now known as Korihait

See also

• VV (disambiguation)
• W (disambiguation)
• 2U (disambiguation)
• U2 (disambiguation)