The river Aurach begins in the Franconian Heights to the west of the village of Klausaurach in the municipality of Markt Erlbach.

It runs through Aurachtal, the town of Herzogenaurach, and the Erlangen district of Frauenaurach.

After crossing under the Main-Danube Canal, it joins the river Regnitz at the Erlangen district of Erlangen-Bruck.

A recreational cycle path runs alongside the river from Herzogenaurach to Erlangen.

This article related to a river in Bavaria is a stub.