The Große Laaber is a river in Bavaria, Germany, right tributary of the Danube. Its source is near Volkenschwand. It is approx. 85 km long. It flows northeast through the small towns Rottenburg an der Laaber, Schierling and Rain. It flows into the Danube near Straubing.Tributaries Heisinger Bach Koppenwaller Bach Marktbach Hornbacher Bach Rennbach Aumerer Bach Ramersdorfer Graben Lauterbach Raschbach Talbach Rohrbach Altbach Helchenbachgraben Sinsbuchgraben Siegersbach Starzenbach Deggenbacher Bach Oberbach Einhauser Graben Hochwiesenbach Augraben Hartlaber Saubründlgraben Kleine Laber