Washington Union may refer to:
The Washington Union, defunct 1850s newspaper in Washington, D.C. The Washington Weekly Union, defunct 1850s newspaper in Washington, D.C. Washington Union Station, train station, transportation hub, and leisure destination in Washington, D.C. Union Station (Washington Metro), Metro station in Washington, D.C., serving Washington Union Station Washington Theological Union, Roman Catholic graduate school of theology and seminary in Washington, D.C. Washington Union High School, founded in 1892 in the rural community of Easton in Fresno County, California
See also Union, Washington, census-designated place in Mason County, Washington Washington Township, Union County, Ohio Union Station (Tacoma, Washington)