German union

German union may refer to:


 * Modern Germany, the result of the 1990 Reunification of Germany
 * The German Empire, the result of the 1871 Unification of Germany
 * The unrealized aim of the 1848 Frankfurt Constitution
 * The German Confederation, the result of the 1815 Congress of Vienna
 * The North German Confederation, the result of the 1866 North German Confederation Treaty
 * The Holy Roman Empire
 * Trade unions in Germany
 * CDU/CSU, also known as the Union, a political alliance in Germany