Emmelke is a small river of Lower Saxony, Germany. It is a left tributary of the Medem, into which it flows in Ihlienworth.
The Emmelke originates near Wanhöden in the municipality of Wurster Nordseeküste , then flows eastward through Wanna and empties into the Medem near the municipality of Ihlienworth ( Samtgemeinde Land Hadeln in the district of Cuxhaven ). The Medem then flows for another 17 km before emptying into the Elbe funnel near Otterndorf.