The Süllberg is a ridge, up to 198.2 m above sea level (NN), in the Calenberg Land near Springe in Hanover Region in the German state of Lower Saxony.

The Süllberg and its foothills, the Vörier Berg in the north, and the Wolfsberg in the northeast, lies a few kilometres east of the Deister in Germany's Central Uplands.

It rises around 14 kilometres south-southwest of the city of Hanover on the territory of Springe and the municipality of Wennigsen, whose boundary runs over the triple-summit hill.

In the Second World War there was an anti-aircrate site on the top of the ridge; today a large number of bomb craters and the concrete foundations remain as evidence.

This has now been given by the Federal Property Management Agency to a private investor who specialises in the area of archiving and document storage as a backup.