- Act Of Union (could also refer to the constitutional result of that legislation, the United Kingdom )
- African Union , an inter-governmental organization in Africa
- European Union , an inter-governmental organization in Europe
- Government Of India , known officially as the ''Union Government''
- Personal Union , a group of separate, independent states that share the same monarch
- Political Union , a type of state composed of smaller states
- Real Union , an intermediate step between personal and political union of states
- Soviet Union , Union of Soviet Socialist Republics
- Union (American Civil War) , The United States, especially in the context of the American Civil War
- The Union Army , the army of the United States in the Civil War
- The Union (political Coalition) (''l'Unione''), a twenty-first century Italian political coalition
- Unionist Party (Canada) , known when in power as the ''Union Government''
- United States Republican Party , known as the ''Union Party'' during the 1864 election
- Trade Union , labor union, employment
- Union College , a college for which the principal campus sits in Schenectady, New York
- Union College (Kentucky) , a college in Kentucky
- Union Institute & University , a non-traditional educational institution
- Union Public Schools , a public school system in Tulsa, Oklahoma
- Union Theological College , a college in Northern Ireland
- Union Theological Seminary In The City Of New York , an ecumenical Christian seminary in New York City, New York
- Union Theological Seminary & Presbyterian School Of Christian Education , a Christian seminary in Richmond, Virginia
- Union University , a Baptist college in Tennessee
- Union (coinage) , a US gold coin that was worth $100 face value, it was never made due to the fact that it would only be circulated among banks.
- Union Station , any of several depots at which two or more railway, subway, or bus lines merge
- Union, Alabama
- Union, Connecticut
- Union, Illinois
- Union, Iowa
- Union, Kentucky
- Union, Maine
- Union, Mississippi
- Union, Missouri
- Union, Nebraska
- Union Township, Hunterdon County, New Jersey
- Union Township, Union County, New Jersey
- Union, New York
- Union, Ohio
- Union, Oregon
- Union, South Carolina
- Union, West Virginia
- Union, Wisconsin
- Union, Saint Vincent
- Union, Grenadines
- Union City, California
- Union City, Georgia
- Union City, Indiana
- Union City, Michigan
- Union City, New Jersey
- Union City, Ohio
- Union City, Pennsylvania
- Union City, Tennessee
- Union County, Arkansas
- Union County, Georgia
- Union County, Illinois
- Union County, Indiana
- Union County, Iowa
- Union County, Kentucky
- Union County, Mississippi
- Union County, New Jersey
- Union County, New Mexico
- Union County, North Carolina
- Union County, Ohio
- Union County, Oregon
- Union County, Pennsylvania
- Union County, South Carolina
- Union County, South Dakota
- Union County, Tennessee
- Union Township, Michigan
- Union Township, New Jersey
- Union Township, Pennsylvania
- Mount Union, Iowa
- Uniontown
- Unionville
- Union Beach, New Jersey
- Union Grove, Alabama
- Union Hill, Illinois
- Union Park, Florida
- Union Parish, Louisiana
- Union Springs, Alabama
- Union Springs, New York
- West Union, Iowa
|
