Christian Union

Christian Union may refer to:


 * Christian Union (Lithuania), a Lithuanian Christian democratic political party (Krikščionių sąjunga in Lithuanian)
 * Christian Union (Netherlands), a Dutch Christian democratic political party (ChristenUnie in Dutch)
 * Christian Union (Slovakia), a Slovak Christian democratic political party (Kresťanská únia in Slovak)
 * Christian Union (denomination), an evangelical Christian denomination in the mid-western U.S.
 * Christian Union, a defunct American magazine published in New York from 1870 to 1893 before being renamed The Outlook
 * Christian unions (student groups), Christian student group at universities or colleges