UA, U-A, Ua, uA, or ua may refer to:

Arts and entertainment

Gaming

* ''

Unearthed Arcana ''Unearthed Arcana'' (abbreviated UA) is the title shared by two hardback books published for different editions of the ''Dungeons & Dragons'' fantasy role-playing game. Both were designed as supplements to the core rulebooks, containing materia ...

'', a Dungeons & Dragons sourcebook * '' Unknown Armies'', a role playing game * '' Urban Assault'', a first-person shooter and real-time strategy computer game

Music

* Ua (born 1972), a Japanese singer-songwriter * ''

United Abominations ''United Abominations'' is the eleventh studio album by American thrash metal band Megadeth. Released on May 15, 2007, ''United Abominations'' is the first Megadeth release distributed through Roadrunner Records and, with the exception of the ban ...

'', an album by the band Megadeth

Other uses in arts and entertainment

United Artists United Artists Corporation (UA), currently doing business as United Artists Digital Studios, is an American digital production company. Founded in 1919 by D. W. Griffith, Charlie Chaplin, Mary Pickford, and Douglas Fairbanks, the stud ...

, a film studio * ''

The Umbrella Academy ''The Umbrella Academy'' is an American comic book series created and written by Gerard Way and illustrated by Gabriel Bá. The first six-issue limited series, '' The Umbrella Academy: Apocalypse Suite,'' was released by Dark Horse Comics betw ...

'', a graphic novel by Gerard Way

Businesses and organizations

* ''Uitgesloten aansprakelijkheid'' (lit. "excluded liability"), a Dutch form of

cooperative A cooperative (also known as co-operative, co-op, or coop) is "an autonomous association of persons united voluntarily to meet their common economic, social and cultural needs and aspirations through a jointly owned and democratically-contro ...

, which has legal personality, but with members (at least two on incorporation) rather than shareholders, with no capital and therefore no minimum capital or equity requirement, and with articles of association that can be worded such that members are not liable for the actions performed by the Cooperative (or losses suffered), usually used as a holding or finance company * ultrAslan, a fan group of the Galatasaray Spor Kulübü football team *

Under Armour Under Armour, Inc. is an American sports equipment company that manufactures footwear, sports and casual apparel. Under Armour's global headquarters are located in Baltimore, Maryland, with additional offices located in Amsterdam (European head ...

, an American clothing brand * Union Association, a baseball league of 1884 *

United Airlines United Airlines, Inc. (commonly referred to as United), is a major American airline headquartered at the Willis Tower in Chicago, Illinois.

, a major American airline headquartered in Chicago, Illinois (whose IATA airline designator is also ''UA'') *

, a film studio *

United Association The United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada, commonly known as the United Association (UA), is a labor union which represents workers in the plumbing and pipefitt ...

, a plumbing and pipefitting labor union in the U.S. and Canada * Universal Audio (company), a designer and manufacturer of audio signal processing hardware and software * University Alliance, a lobbying group of British universities * UP Aerospace, a private spaceflight company based in Denver, Colorado

Military uses

* German submarine UA (1939), German submarine ''UA'', a German submarine of the Second World War * German Type UA submarine, German ''Type UA'' submarine, of the First World War * , a World War I submarine of Imperial Germany * Unauthorized Absence, a key term for the abandonment of a duty or post without permission (United States) * Future Force Unit of Action, a proposed US Army tactical unit

Places

* ''ua'', ISO country code for Ukraine * , Ligurian for the Italian commune of Ovada * Upper Arlington, Ohio

Schools

* University of Akron, a public research university in Akron, Ohio, United States * University of Alabama, a public research university located in Tuscaloosa, Alabama, United States * University of Alaska system, a university system in Alaska created in 1975 :* University of Alaska Anchorage, the largest university by enrollment in the system :* University of Alaska Fairbanks, the first university and flagship (known from 1925 to 1975 simply as the University of Alaska) :* University of Alaska Southeast, located in the capital city of Juneau, and the smallest by enrollment * University of Alicante, a public university in Alicante, Spain * University of Antwerp, one of the major Belgian universities located in the city of Antwerp * University of Arizona, a public research university in Tucson, Arizona, United States * University of Arkansas, a public, co-educational, land-grant, space-grant, research university in Fayetteville, Arkansas, United States

Science and technology

Biology and medicine

* Unstable angina, a type of heart disease * Uric acid, a metabolic compound * Urinalysis (also U/A), a set of medical diagnostic tests performed on urine

Computing and telecommunications

* .ua, the Internet country code top-level domain (ccTLD) for Ukraine * User agent, a computer networking software class * User Assistance, computer programme manuals and documentation * Universal Acceptance, a term to represent the principle that accepts all the email addresses with every Top-level domain (TLD).

Other uses in science and technology

* Unmanned aircraft or unmanned aerial vehicle (UAV), an aircraft without a human pilot aboard (commonly known as a drone) * Microampere (uA, properly µA), a unit of electric current defined as one-millionth of an ampere * UA, the product of a heat exchanger's Heat transfer coefficient#Overall heat transfer coefficient, Overall Heat Transfer Coefficient ''U'' and its active exchange area ''A'' in thermodynamics

Other uses

* Unit of account, a nominal monetary unit of measure or currency used to represent the real value (or cost) of any economic item (in economics), or the words that are used to describe the specific assets and liabilities that are reported in financial statements rather than the units used to measure them (in financial accounting) * Unitary authority, a type of local authority that has a single tier and is responsible for all local government functions within its area, or performs additional functions which elsewhere in the relevant country are usually performed by national government or a higher level of sub-national government * Urban area, a human settlement with high population density and infrastructure of built environment