The Jakobsberg is a hill, 235.2 m above sea level (NN), that forms the westernmost peak of the Wesergebirge chain and is the eastern guardian of the Weser gorge, the Porta Westfalica or "Westphalian Gate", in North Rhine-Westphalia (Germany).

In the closing phase of the Second World War, most likely in March 1944, the manufacture of pipes by the firm of Philips was moved from the Netherlands to the Jakobsberg.

In Hausberge and Barkhausen there was a satellite of Neuengamme concentration camp with over a thousand prisoners,[1] of which a considerable number worked in the Jakobsberg.

[2] After the end of the war the local population used their surviving knowledge of the mine system running through the hills to collect material from the production facilities and sell it on the black market.

[3] The British occupation forces brought this to an end with a demolition that caused pictures to fall from the walls up to a distance of 15 kilometres away and that created part of the present-day riverside front of the Jakobsberg.

A few metres west of the Jakobsberg transmission tower is Gaststätte Bismarckburg, an inn that was built at the end of the 18th century and is rich in tradition.

On the crest of the Jakobsberg towards the southwest and just under 650 m (as the crow flies) west of the Bismarckburg Inn at a height of 216.5 m above NN are the ruins of the Schlageter Monument.

The Jakobsberg is covered by a good network of walking trails, including the European long-distance path E11 over which the points of interest on the hill may be reached.