Mühlenbek

{{Unreferenced|date=September 2020}}

{{Expand German|topic=geo|date=October 2011|Mühlenbek (Stör)}}

{{Infobox river

| name = Mühlenbek

| image =

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| mouth_location = Stör

| mouth_coordinates = {{coord|53|56|48|N|9|43|21|E|region:DE-SH_type:waterbody_source:kolossus-dewiki|display=it}}

| progression = {{RStör}}

| subdivision_type1 = Country

| subdivision_name1 = Germany

| subdivision_type2 = States

| subdivision_name2 = Schleswig-Holstein

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Mühlenbek is a river of Schleswig-Holstein, Germany. It flows into the Stör near Kellinghusen.