Am Dobrock is a former "Samtgemeinde" ("collective municipality") in Cuxhaven, in Lower Saxony, Germany. It is near the convergence of the rivers Oste and Elbe, about 25 km east of Cuxhaven, and 15 km south of Brunsbüttel. Its seat is in the village Cadenberge. On 1 November 2016 it was combined into the collective municipality Land Hadeln.