The Battle of Landshut took place on 21 April 1809 between the French, Württembergers and Bavarians under Napoleon which numbered about 77,000 strong, and 36,000 Austrians under the General Johann von Hiller. The Austrians, though outnumbered, fought hard until Napoleon arrived, when the battle subsequently became a clear French victory.

Landshut is a town in Bavaria in the south-east of Germany. Situated on the banks of the River Isar, Landshut is the capital of Lower Bavaria, one of the seven administrative regions of the Free State of Bavaria. It is also the seat of the surrounding district and has a population of more than 75,000. Landshut is the largest city in Lower Bavaria, followed by Passau and Straubing, and Eastern Bavaria's second after Regensburg.