Twelfth Army

Twelfth Army or 12th Army may refer to:

Germany

 * 12th Army (German Empire), a World War I field Army
 * 12th Army (Wehrmacht), a World War II field army

Others

 * Twelfth Army (Japan), a unit of the Imperial Japanese Army
 * Twelfth Army (Soviet Union), a unit of the Soviet Army
 * Twelfth Army (United Kingdom), a unit of the United Kingdom Army