Trendelburg () is a town in the district of Kassel, in Hesse, Germany with a population of 5,282 on 30 September 2009. It is situated on the river Diemel, near where the <bdi>Esse j</bdi><bdi>oins the Diemel, and is</bdi> north of Kassel.
The town is twinned with Pocklington, England.
Trendelburg is located on the German Timber-Frame Road.