Christian Democratic Union

Christian Democratic Union may refer to:


 * Christian Democratic Union (Armenia)
 * Christian Democratic Union (Belize), a former trade union
 * Christian Democratic Union (Bolivia)
 * Christian Democratic Union (Dominican Republic)
 * Christian Democratic Union (East Germany)
 * Christian Democratic Union (Ecuador)
 * Christian Democratic Union of Germany
 * Christian Democratic Union (Latvia)
 * Christian Democratic Union (Lebanon)
 * Christian Democratic Union (Lithuania)
 * Christian Democratic Union (Namibia)
 * Christian Democratic Union (Netherlands)
 * Christian Democratic Union (Ukraine)
 * Christian and Democratic Union (Czech Republic)