Duhok District (; ) is a district of Duhok Governorate in Kurdistan Region, Iraq. The administrative centre is Duhok.
In 1929, the district had a diverse population of 29,858, including 18,307 Muslim Kurds, 5784 Christians, 2068 Muslim Arabs, 2870 Yazidis, and 829 Jews.
The district has the following sub-districts: