Marschacht is a municipality in the district of Harburg, in Lower Saxony, Germany.

It completes the Samtgemeinde Elbmarsch with Tespe and Drage.

1216: First documentary mention of the settlement as Hachede, then a part of Saxony.

A change in the course of the Elbe cuts the settlement into two: Geesthacht (in Schleswig-Holstein) and Marschacht .

This Harburg district location article is a stub.