Dosenbek is an 8-kilometre-long (5.0 mi) river of Schleswig-Holstein, Germany.

The origin is in the Gehege Negenharrie (Gehege may be translated as forest enclosure) in the district Rendsburg-Eckernförde.

Most of the water originates from the Dosenmoor.

Here the Dosenbek empties into the Schwale.

This article related to a river in Schleswig-Holstein is a stub.