Infanterie-Division) was a unit of the Imperial German Army in World War I.
The 103rd Infantry Division initially served on the Eastern Front, seeing its first action in the Gorlice-Tarnów Offensive.
In October and November, it fought in the Battle of the Somme, after which it returned to the trenchlines in the Champagne region and by Verdun.
Afterwards, it was in the trenchlines in the Chemin des Dames region and later near St. Quentin and on the Oise River.
Cavalry was reduced, artillery and signals commands were formed, and combat engineer support was expanded to a full pioneer battalion.