Subdistricts (Arabic: ناحية, nahiyah) are the third-level administrative division in Iraq.
Iraq is divided into 18 governorates or muhafazah), which are divided into more than 130 districts (kaza). Four of the governorates (Erbil, Sulaymaniyah, Duhok, and Halabja) are part of the autonomous Kurdistan Region. Districts are divided into subdistricts.
| Province | List | No. of subdistricts[1] |
|---|---|---|
| Province of Al-Anbar | List of subdistricts in Al-Anbar | |
| Province of Al-Basrah | List of subdistricts in Al-Basrah | |
| Province of Al-Muthana | List of subdistricts in Al-Muthana | |
| Province of Al-Qadisiyah | List of subdistricts in Al-Qadisiyah | |
| Province of An-Najaf | List of subdistricts in An-Najaf | |
| Province of Sulaymaniyah (Part of Kurdistan Region) | List of subdistricts in Sulaymaniyah | |
| Province of Kirkuk | Subdistricts of Kirkuk | 14 |