Heidgraben is a municipality in the district of Pinneberg, in Schleswig-Holstein, Germany.

The number of citizens working in agriculture or in tree nurseries is only small.

Heidgraben is situated 18 kilometres in the northwest of Hamburg on the edge of the Marsh, on the Geest land.

Heidgraben is connected to the public transport with bus routes to Uetersen and Tornesch.

In the east of Heidgraben there is the Autobahn 23 located, access in Tornesch and Elmshorn.