UU

UU may refer to:

In computing:

• Unique users, may be counted as part of web analytics in determining the popularity of a website
• UUNET, Internet Service Provider commonly referred to as 'UU'
• Unix-to-Unix, as in uuencode, a data transport encoding

In education:

• University of Uppsala in Sweden
• University of Ulster in Northern Ireland
• Utrecht University in the Netherlands
• The Unseen University, in the fictional Discworld novels of Terry Pratchett

In linguistics:

• "uu", an old way of spelling the letter "w" in certain Germanic languages (e.g. the Merseburg Incantations spell the name of the god Woden as Uuôdan).
• The letter combination of uu

Organizations:

• LSE stock ticker symbol for United Utilities
• IATA code for Air Austral airline

In religion:

• Unitarian Universalism, a theologically liberal religion characterized by its support for a "free and responsible search for truth and meaning."

Other uses:

• the Uu interface, UMTS air interface, which links the User Equipment to UMTS Terrestrial Radio Access Network in a UMTS network.

See also

• VV (disambiguation)
• W (disambiguation)