The 25th Reserve Division (25. Reserve-Division) was a unit of the Imperial German Army, in World War I. The division was formed on mobilization of the German Army in August 1914 as part of XVIII Reserve Corps and was disbanded in October 1918, with its assets being distributed to other units. The division was raised in the Grand Duchy of Hesse and the Prussian Province of Hesse-Nassau, while its 83rd Reserve Infantry Regiment included troops from the Principality of Waldeck.