The Abens is a river in Bavaria, Germany, and a right-bank tributary of the Danube. Its source is near Au in der Hallertau. Some long, it flows generally northward through the small towns of Au in der Hallertau, Rudelzhausen, Mainburg, Siegenburg, and Abensberg. It empties into the Danube at Eining, part of Neustadt an der Donau.
