Duingen is a former Samtgemeinde ("collective municipality") in the district of Hildesheim, in Lower Saxony, Germany. Its seat was in the village Duingen. On 1 November 2016 it was merged into the new Samtgemeinde Leinebergland.
The Samtgemeinde Duingen consisted of the following municipalities:
Coppengrave Duingen Hoyershausen Marienhagen Weenzen
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