Ahlden is a municipality in the Heidekreis district in Lower Saxony, Germany. It is situated on the river Aller, approx. 15 km southwest of Bad Fallingbostel, and 30 km southeast of Verden. Ahlden is located in the Samtgemeinde of Ahlden.

Ahlden is a Samtgemeinde in the Heidekreis district, in Lower Saxony, Germany. Its seat is in the village Hodenhagen. The Samtgemeinde Ahlden consists of the following municipalities: Ahlden Eickeloh Grethem Hademstorf Hodenhagen