Union commonly refers to: * Trade union, an organization of workers * Union (set theory), 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), ''Union'' (Union album), 1998 * Union (Chara album), ''Union'' (Chara album), 2007 * Union (Toni Childs album), ''Union'' (Toni Childs album), 1988 * Union (Cuff the Duke album), ''Union'' (Cuff the Duke album), 2012 * Union (Paradoxical Frog album), ''Union'' (Paradoxical Frog album), 2011 * ''Union'', a 2001 album by Puya (band), Puya * ''Union'', a 2001 album by Rasa (band), Rasa * Union (The Boxer Rebellion album), ''Union'' (The Boxer Rebellion album), 2009 * Union (Yes album), ''Union'' (Yes album), 1991 * Union (Black Eyed Peas song), "Union" (Black Eyed Peas song), 2005

Other uses in arts and entertainment

* Union (Star Wars), ''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)'', 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, in Ohio, U.S. * Union Presbyterian Seminary, in Virginia, U.S. * Union Public Schools, a school district in Oklahoma, U.S. * Union School of Theology, in Wales * Union Theological College, in Northern Ireland * Union Theological Seminary (disambiguation), the name of several institutions * Union University (disambiguation), the name of several institutions

History and politics

* Economic union, a type of trade bloc * Political union, a type of state which is composed of or created out of smaller states * Personal union, the combination of two or more states that have the same monarch * Poor law union, 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), 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, Maine * Union, Mississippi * Union, Missouri, in Franklin County * Union, Clark County, Missouri * Union, Nebraska * Union, New Hampshire * 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) * 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

* Union (set theory), in mathematics, a fundamental operation on sets * Union (SQL), an 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 league baseball, Negro leagues * Philadelphia Union, a soccer team * Royale Union Saint-Gilloise, a Belgian association football club * Union Race Course, formerly in San Francisco, U.S.

Other uses

* Union (automobile), made by the Union Automobile Company 1902–1905 * Union (plumbing), a pipe fitting * Union (United States coin), a proposed $100 coin * List of ships named Union, List of ships named ''Union'' * Gabrielle Union (born 1972), an American actress