Union commonly refers to: *

Trade union A trade union (British English) or labor union (American English), often simply referred to as a union, is an organization of workers whose purpose is to maintain or improve the conditions of their employment, such as attaining better wages ...

, an organization of workers *

Union (set theory) In set theory, the union (denoted by ∪) of a collection of Set (mathematics), sets is the set of all element (set theory), elements in the collection. It is one of the fundamental operations through which sets can be combined and related to e ...

, in mathematics, a fundamental operation on sets Union may also refer to:

Arts and entertainment

Music

* Union (band), an American rock group ** ''Union'' (Union album), 1998 * ''Union'' (Chara album), 2007 * ''Union'' (Toni Childs album), 1988 * ''Union'' (Cuff the Duke album), 2012 * ''Union'' (Paradoxical Frog album), 2011 * ''Union'', a 2001 album by Puya * ''Union'', a 2001 album by Rasa * ''Union'' (Son Volt album), 2019 * ''Union'' (The Boxer Rebellion album), 2009 * ''Union'' (Yes album), 1991 * "Union" (Black Eyed Peas song), 2005

Other uses in arts and entertainment

* ''Union'' (film), a labor documentary released in 2024 * ''Union'' (Star Wars), a Dark Horse comics limited series * Union, in the fictional Alliance–Union universe of C. J. Cherryh * ''

Union (Horse with Two Discs) ''Union (Horse with Two Discs)'' is a bronze sculpture by Christopher Le Brun, made in 1999–2000 in an edition of three large casts. It depicts a horse standing square on four legs, flanked on either side by a large disc. The sculpture mea ...

'', a bronze sculpture by Christopher Le Brun, 1999–2000 * The Union (Marvel Team), a Marvel Comics superhero team and comic series

Education

* Union Academy (disambiguation), the name of several institutions * Union College (disambiguation), the name of several institutions *

Union Institute & University Union Institute & University (UI&U) was a private online university that was headquartered in Cincinnati, Ohio. It also operated satellite campuses in Florida and California. In early 2023, it began to experience severe financial challenge ...

, in Ohio, U.S. *

Union Presbyterian Seminary Union Presbyterian Seminary is a Presbyterian seminary in Richmond, Virginia, and Charlotte, North Carolina, offering graduate theological education in multiple modalities: in-person, hybrid, and online. History As a result of efforts underta ...

, in Virginia, U.S. *

Union Public Schools Union Public Schools is a public school district located in southeast Tulsa, Oklahoma, Tulsa, and northwest Broken Arrow, Oklahoma. The school district is the eighth-largest in Oklahoma. Union is notable among school districts in the area becaus ...

, a school district in Oklahoma, U.S. *

Union School of Theology Union School of Theology is a Reformed educational institution in Bryntirion in Bridgend, South Wales. The School is part of the wider Christian ministry of Union which also involves church planting and the production of theological resource ...

, in Wales *

Union Theological College Union Theological College is the theological college for the Presbyterian Church in Ireland and is situated in Belfast, Northern Ireland. It is governed by the Council for Training in Ministry. It has been responsible for training people for m ...

, in Northern Ireland *

Union Theological Seminary (disambiguation) Union Theological Seminary is a Christian seminary in New York that is affiliated with Columbia University. Union Theological Seminary may also refer to: * Guangdong Union Theological Seminary, a Protestant seminary in Guangzhou, Guangdong, Chin ...

, the name of several institutions *

Union University (disambiguation) Union University is an evangelical Christian liberal arts university in Jackson, Tennessee, United States. Union University may also refer to: * Beijing Union University * Union University (New York) * Union University (Serbia) * Union Universi ...

, the name of several institutions

History and politics

Economic union An economic union is a type of trade bloc which is composed of a common market with a customs union. The participant countries have both common policies on product regulation, freedom of movement of goods, services and the factors of prod ...

, a type of trade bloc *

Political union A political union is a type of political entity which is composed of, or created from, smaller politics or the process which achieves this. These smaller polities are usually called federated states and federal territories in a federal gove ...

, a type of state which is composed of or created out of smaller states *

Personal union A personal union is a combination of two or more monarchical states that have the same monarch while their boundaries, laws, and interests remain distinct. A real union, by contrast, involves the constituent states being to some extent in ...

, the combination of two or more states that have the same monarch *

Poor law union A poor law union was a geographical territory, and early local government unit, in Great Britain and Ireland. Poor law unions existed in England and Wales from 1834 to 1930 for the administration of poor relief. Prior to the Poor Law Amendment ...

, a former unit of local government in the United Kingdom * Real union, a union of two or more states, which share some state institutions * CDU/CSU, or the Union, a German political alliance *

Union (American Civil War) The Union was the central government of the United States during the American Civil War. Its civilian and military forces resisted the Confederate State of America, Confederacy's attempt to Secession in the United States, secede following the 1 ...

, U.S. states that were loyal to the U.S. federal government * Union (Hungarian-German trade union council) * Union (Madagascar), a political party

Places

Canada

* Union, Elgin County, Ontario * Union, Leeds and Grenville United Counties, Ontario * Union, Nova Scotia * Union, Prince Edward Island

United States

* Union, Alabama * Union, Connecticut * Union, Illinois * Union, Logan County, Illinois * Union, Indiana * Union, Iowa * Union, Kentucky * Union, Louisiana *

Union Parish, Louisiana Union Parish ( French: ''Paroisse de l'Union'') is a parish located in the north central section of the U.S. state of Louisiana. As of the 2020 census, the population was 21,107. The parish seat is Farmerville. The parish was created on ...

* Union, Maine * Union, Mississippi * Union, Missouri, in Franklin County * Union, Clark County, Missouri * Union, Nebraska * Union, New Hampshire * Union (CDP), New Jersey * Union (hamlet), New York, in Madison County * Union, New York, in Broome County * Union, Ohio, a city in Montgomery and Miami Counties * Union, Oregon * Union, Pennsylvania (disambiguation) * Union, South Carolina * Union, Texas * Union, Virginia * Union, Washington * Union, West Virginia * Union, Barbour County, West Virginia * Union, Wisconsin (disambiguation) * Union Township, New Jersey (disambiguation) * Arcata, California, first settled as Union * Mount Union (Arizona)

Elsewhere

* Union, Grenada * Unión, Paraguay * Union, Bohol, Philippines * Union, Dapa, Philippines * Union Island, Saint Vincent and the Grenadines

Science and mathematics

, in mathematics, a fundamental operation on sets * Union (SQL), a set operation * Union type, in computer science, a type of data structure

Sports

* 1. FC Union Berlin, a German association football club * Chicago Unions, a professional, Black baseball team that played in the US in the late 19th century, prior to the formation of the Negro leagues. * Chicago Union Giants, a former American baseball team in the Negro leagues * Philadelphia Union, a soccer team * Royale Union Saint-Gilloise, a Belgian association football club * Shaanxi Union F.C., a Chinese association football club * Union of European Football Associations * Union Race Course, formerly in San Francisco, U.S.

Other uses

* List of ships named ''Union'' * Union (automobile), made by the Union Automobile Company 1902–1905 *

Union (plumbing) A fitting or adapter is used in pipe systems to connect sections of pipe (fluid conveyance), pipe (designated by Nominal Pipe Size, nominal size, with greater Engineering tolerance, tolerances of variance) or tube (fluid conveyance), tube (de ...

, a pipe fitting * Union (United States coin), a proposed $100 coin * Union, Manchester, a co-living development in Manchester, England * Gabrielle Union (born 1972), an American actress