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:

1. Coppengrave
2. Duingen
3. Hoyershausen
4. Marienhagen
5. Weenzen

• 4th Garrison Division of Fuzhou Military Region
• 4th Gaumee Film Awards
• 4th (Glamorgan) Company, Imperial Yeomanry
• 4th Glamorganshire Battery, Royal Field Artillery
• 4th (Glasgow, 1st Northern) Lanarkshire Rifle Volunteer Corps
• 4th Globes de Cristal Award
• 4th Globes de Cristal Awards
• 4th Golden Horse Awards
• 4th Golden Melody Awards
• 4th Guards Anti-Aircraft Artillery Division
• 4th Guards Army Corps
• 4th Guards Cavalry Corps
• 4th Guards Kantemirovskaya Tank Division
• 4th Guards Mechanised Division
• 4th Guards Mechanized Corps
• 4th Guards Motor Rifle Division
• 4th Guards Rifle Division
• 4th Guards Rifle Division (Soviet Union)
• 4th Guards Tank Army (Soviet Union)
• 4th Heavy Anti-Aircraft Regiment, Royal Artillery
• 4th Helpmann Awards
• 4th Highland (Mountain) Brigade, Royal Garrison Artillery
• 4th (Hull) Yorkshire (East Riding) Artillery Volunteer Corps
• 4th Hum Awards
• 4th (Huntingdonshire) Volunteer Battalion, Bedfordshire Regiment