UAC may refer to:

Computing

User Account Control User Account Control (UAC) is a mandatory access control enforcement feature introduced with Microsoft's Windows Vista and Windows Server 2008 operating systems, with a more relaxed

, a security feature in Microsoft Windows * Session Initiation Protocol#User agent client

Organizations

Ulster Army Council The Ulster Army Council (or UAC) of Northern Ireland was set up in 1973 as an umbrella group by the Ulster Defence Association and the Ulster Volunteer Force to co-ordinate joint paramilitary operations during the Ulster Workers' Council Strike. A ...

, 1973 Northern Ireland loyalist paramilitary group * Undeb Amaethwyr Cymru, the Farmer's Union of Wales * Unemployment Action Center, a non-profit organization in New York City, US *

United Apostolic Church The member churches of the United Apostolic Church are independent communities in the tradition of the catholic apostolic revival movement. Further reading * Apostolic Church of Queensland, ''Book of faith'' * Wissen, Volker: Zur Freiheit berufe ...

Union of Catholic Apostolate Union of Catholic Apostolate is a Catholic association established by a Roman priest St. Vincent Pallotti in 1835. History With a group of associates and collaborators, Vincent Pallotti developed in the city of Rome a large structure of apostoli ...

* Université d’Abomey-Calavi, part of the

National University of Benin The University of Abomey-Calavi ''(french: Université d'Abomey-Calavi)'' is the principal public university in the west African country of Benin. The university is located in the city of Abomey-Calavi in the south of the country. The school i ...

United Africa Company The United Africa Company (UAC) was a British company which principally traded in West Africa during the 20th century. The United Africa Company was formed in 1929 as a result of the merger of The Niger Company, which had been effectively owne ...

, 20th-century British company **

United Africa Company of Nigeria The United Africa Company of Nigeria is a Nigerian publicly listed company based in Lagos. Its areas of operation include manufacturing, services, logistics and warehousing, agricultural and real estate. UACN's food operations include UAC Fra ...

, formerly a subsidiary of United Africa Company *

United Aircraft Corporation The PJSC United Aircraft Corporation (UAC) () is a Russian Aerospace manufacturer, aerospace and Arms industry, defense corporation. With a majority stake belonging to the Russian government, it consolidates Russian private and state-owned Russian ...

, Russian aerospace and defense company *

United Arab Command The United Arab Command (UAC) (also Unified Arab Command or Joint Arab Command) was a unified Military of the Arab League, Arab military Command (military formation), command established by unanimous resolution of the thirteen member states of th ...

, of the Arab League * United Athletic Conference, an American college football conference that started play in 2023 *

Universities Admissions Centre The Universities Admissions Centre (UAC, pronounced ) is an organisation that processes applications for admission to tertiary education courses, mainly at institutions in New South Wales and the Australian Capital Territory. A not-for-profit com ...

, Australia * Urban Appalachian Council, Cincinnati, US

Other

Unaccompanied Alien Children Unaccompanied Alien Children (or UAC, also referred to as unaccompanied alien minors or UAMs) is a United States government classification for children in immigration custody and the name of a program operated by the Office of Refugee Resettlement ...

, United States government classification for children in immigration custody * Unified Arab Code, a Civil Code produced by the

Arab League The Arab League ( ar, الجامعة العربية, ' ), formally the League of Arab States ( ar, جامعة الدول العربية, '), is a regional organization in the Arab world, which is located in Northern Africa, Western Africa, E ...

between 1988 and 1996 *

Urban adult contemporary Urban adult contemporary, often abbreviated as urban AC or UAC, (also known as adult R&B,) is the name for a format of radio music, similar to an urban contemporary format. Radio stations using this format usually would not have hip hop music on ...

, radio music format * Union Aerospace Corporation, fictional military contractor in the ''Doom'' video game franchise * UAC, a codon for the amino acid

tyrosine -Tyrosine or tyrosine (symbol Tyr or Y) or 4-hydroxyphenylalanine is one of the 20 standard amino acids that are used by cells to synthesize proteins. It is a non-essential amino acid with a polar side group. The word "tyrosine" is from the Gr ...

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