UA

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

In science and technology

In 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
• unmeasured anions is used in the calculating of anion gap in the nephrology

In computing and telecommunications

• Universal Alcatel, a telecommunications protocol
• User agent, a computer networking software class
• User Assistance, computer programme manuals and documentation

Other uses in science and technology

• Unmanned aircraft
• Microampere (uA, properly µA)

In arts and entertainment

In gaming

• Unearthed Arcana, Dungeons & Dragons sourcebook
• Unknown Armies, role playing game
• Urban Assault, a video game

In music

• Ua (singer) (born 1972), Japanese singer-songwriter
• United Abominations, an album by the band Megadeth

Other uses in arts and entertainment

• United Artists, a film studio
• The Umbrella Academy, a graphic novel by Gerard Way

Businesses

• Under Armour, a clothing brand
• United Artists, a film studio
• United Airlines (IATA airline designator)
• Universal Audio Inc, a designer and manufacturer of audio signal processing hardware and software
• UP Aerospace, a private spaceflight company based in Denver, Colorado

Military uses

• German submarine U-A, a German submarine of the Second World War
• Unauthorized Absence, the abandonment of a duty or post without permission
• Future Force Unit of Action, a proposed US Army tactical unit

Organizations

• ultrAslan, a fan group of the Galatasaray Spor Kulübü football team
• Union Association, a baseball league of 1884
• United Association, a plumbing and pipefitting labor union in the U.S. and Canada
• University Alliance, a lobbying group of British universities

Places

• Ukraine, ISO country code (".ua")
• Upper Arlington, Ohio

Schools

• U of A (disambiguation)
• University of Akron, U.S.
• University of Alabama, U.S.
• University of Alaska, U.S.
• University of Antwerp, Belgium
• University of Arizona, U.S.
• University of Arkansas, U.S.
• Ursuline Academy (disambiguation)

Other uses

• Unit of account, in economics
• Unitary authority, a local government division in England
• Urbanized Area, a location with a high human population density