UU or uu may refer to:

Businesses

United Utilities United Utilities Group plc (UU) is the United Kingdom's largest listed water company. It was founded in 1995 as a result of the merger of North West Water and NORWEB. The group manages the regulated water and waste water network in North West En ...

(LSE stock symbol UU) *

Air Austral Air Austral is a French airline that is also the flag carrier of the Overseas departments and regions of France, overseas department and region of Réunion. The airline is based at Roland Garros Airport. It operates scheduled services from Réu ...

(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 This is a list of digraphs used in various Latin alphabets. In the list, letters with diacritics are arranged in alphabetical order according to their base, e.g. is alphabetised with , not at the end of the alphabet, as it would be in Danish, ...

Science and technology

UUNET UUNET Technologies, Inc., formerly UUNET Communications Services, was an American commercial Internet service provider. Founded in 1987, it was one of the first and largest commercial ISPs and one of the early Tier 1 networks. It was based in ...

, Internet Service Provider commonly referred to as 'UU' *

Unique user A unique user is a term in web analytics that refers to data of a Pageview of a unique IP, whose presence is only counted once, regardless of the number of pages they visit. This definition does not count repeat or returning users for a standard pe ...

s, 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 Ulster University (; Ulster Scots: or ), legally the University of Ulster, is a multi-campus public research university located in Northern Ireland. It is often referred to informally and unofficially as Ulster, or by the abbreviation UU. It i ...

in Northern Ireland **

Ulster University F.C. Ulster University Football Club, referred to simply as Ulster, is a Northern Ireland, Northern Irish, intermediate football club playing in the Northern Amateur Football League. It is affiliated with Ulster University. The club was formerly know ...

Union University Union University is a private Baptist university in Jackson, Tennessee, with additional campuses in Germantown and Hendersonville. The university is affiliated with the Tennessee Baptist Convention (Southern Baptist Convention). It was estab ...

in Jackson, Tennessee, United States *

University of Utah The University of Utah (the U, U of U, or simply Utah) is a public university, public research university in Salt Lake City, Utah, United States. It was established in 1850 as the University of Deseret (Book of Mormon), Deseret by the General A ...

in Salt Lake City, Utah, United States *

Uppsala University Uppsala University (UU) () is a public university, public research university in Uppsala, Sweden. Founded in 1477, it is the List of universities in Sweden, oldest university in Sweden and the Nordic countries still in operation. Initially fou ...

in Sweden *

Utica University Utica University is a private university in Utica, New York. The university has a main campus in Utica; the Robert Brvenik Center for Business Education, in downtown Utica; and satellite locations in Syracuse, New York; Latham, New York; and ...

in Utica, New York, United States *

Utrecht University Utrecht University (UU; , formerly ''Rijksuniversiteit Utrecht'') is a public university, public research university in Utrecht, Netherlands. Established , it is one of the oldest universities in the Netherlands. In 2023, it had an enrollment of ...

in the Netherlands *

Uttaranchal University Uttaranchal University is an academic cum research university located at Dehradun, Uttarakhand, India near Indian Military Academy. It was established by an Act of the Uttarakhand Legislative Assembly under Smt Shushila Devi education foundati ...

in Uttarakhand, India

Other uses

Union of Utrecht (Old Catholic) The Union of Utrecht of the Old Catholic Churches, most commonly referred to by the short form Union of Utrecht (UU), is a federation of Old Catholic churches, nationally organized from schisms which rejected Roman Catholic doctrines of the Fir ...

, a federation of Old Catholic churches *

Unitarian Universalism Unitarian Universalism (abbreviated UUism or UU) is a liberal religious tradition characterized by its commitment to theological diversity, inclusivity, and social justice. Unitarian Universalists do not adhere to a single creed or doctrine. I ...

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

Unseen University The Unseen University (UU) is a school of wizardry in Terry Pratchett's '' Discworld'' series of fantasy novels. Located in the fictional city of Ankh-Morpork, the UU is staffed by mostly indolent and inept old wizards. The university's name i ...

, in the fictional ''Discworld'' novels of Terry Pratchett *UU, the production code for the 1968 ''Doctor Who'' serial ''

The Mind Robber ''The Mind Robber'' is the second serial of the sixth season of the British science fiction television series ''Doctor Who'', which was first broadcast in five weekly parts from 14 September to 12 October 1968. The serial is set outside of time ...

'' *

U'u The U'u is a war club of the Marquesas Islands. Cut from iron wood, its shape and large size distinguish it from other Pacific gunstocks. It was reserved for a caste of warriors who were assisting allied tribes. The club should at least reach i ...

a war club from Marquesas Islands *

Undead Unluck is a Japanese manga series written and illustrated by . It was serialized in Shueisha's ''Weekly Shōnen Jump'' magazine from January 2020 to January 2025, with its chapters collected in 27 volumes. The series is licensed for English rel ...

a shorthand for the manga by Yoshifumi Tozuka.

Businesses

Language

Science and technology

Universities

Other uses

See also