Deggendorf is a town in Bavaria, capital of the Deggendorf district.

It is located on the left bank approximately in the middle between the Danube cities of Regensburg and Passau. The crossing railway bridge situated on the Danube kilometers 2286th forms the natural border to the city about south-east of the Danube, it is the other side at the foot of the central Bavarian Forest. A few miles downstream, near the district Deggenau, the Isar flows into the Danube.