The Böhme is a right-bank, northeastern tributary of the Aller in the district of Soltau-Fallingbostel in the north German state of Lower Saxony.

Unlike the others, however, it flows through a relatively narrow valley in its middle reaches between Dorfmark and Walsrode, the highest points of which are the 40 m high bluffs of the Fallingbostel Lieth.

It had already begun to attract tourists by the end of the 19th century and its popularity is reflected in local names such as the Honerdingen Switzerland (Honerdinger Schweiz) - now unrecognisable due to sand quarrying - and Böhme Gorge (Böhmeschlucht).

It initially formed a single landscape unit with the small ridge of the Falkenberg end moraine, the dolmens of the Sieben Steinhäuser and the old resort of Achterberg, today inside the Bergen-Hohne Training Area.

This region, also called the Heidmark has a denser population than the surrounding area, partly because of the more fertile soils on the local loam heathland, but importantly due to early industrialization in Bomlitz (on the Böhme tributary of the same name).