The Ingolstadt–Neuoffingen railway is a single-track, electrified mainline railway in Bavaria, Germany. It runs in the Danube valley from Ingolstadt via Neuburg an der Donau, Donauwörth and Dillingen an der Donau to Neuoffingen, where it joins the Augsburg–Ulm railway. The Ingolstadt–Neuoffingen railway and the Regensburg–Ingolstadt railway together form the Bavarian Danube Valley Railway (Donautalbahn).

The Regensburg–Ingolstadt railway is a single-track, electrified mainline railway in Bavaria, Germany. It runs in the Danube valley from Regensburg to Ingolstadt. The Regensburg–Ingolstadt railway and the Ingolstadt–Neuoffingen railway together form the Bavarian Danube Valley Railway (Donautalbahn).