|location||District of the Duchy of Lauenburg , Schleswig-Holstein , Germany|
|River system||Elbe → Trave|
|River basin district||Elbe|
|source||near Niendorf ad St.
|muzzle||near Hornbek in the Elbe-Lübeck Canal
The Hornbeker Mühlenbach is an approx. 7 km long stream in the Duchy of Lauenburg district of the German state Schleswig-Holstein . It rises near Niendorf ad St. and flows near Hornbek through a deep indented valley into the Elbe-Lübeck Canal (before 1900 into the Delvenau ). The old salt road crossed it here on the Mühlendamm.