Duingen is a village and a municipality in the district of Hildesheim, in Lower Saxony, Germany.

It is situated approximately 25 km southwest of Hildesheim, and 40 km south of Hanover.

Since 1 November 2016, the former municipalities Coppengrave, Hoyershausen, Marienhagen and Weenzen are part of the municipality Duingen.

Duingen was the seat of the former Samtgemeinde ("collective municipality") Duingen.

This Hildesheim district location article is a stub.