| Nouakchott-Ouest | |
| Native Name: | نواكشوط الغربية |
| Native Name Lang: | ar |
| Settlement Type: | Region of Mauritania |
| Coordinates: | 18.1°N -16°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Mauritania |
| Subdivision Type1: | Departments |
| Subdivision Name1: | Ksar, Sebkha, Tevragh-Zeina |
| Established Title: | Created |
| Established Date: | 25 November 2014 |
| Seat Type: | Capital |
| Seat: | Tevragh-Zeina |
| Leader Title: | Wāli |
| Leader Name: | Mahi Ould Hamed |
| Unit Pref: | Metric |
| Area Footnotes: | [1] |
| Area Total Km2: | 146 |
| Population Total: | 165814 |
| Population As Of: | 2013 |
| Population Density Km2: | auto |
| Utc Offset1: | +0 |
| Timezone1 Dst: | not observed |
Nouakchott-Ouest (Arabic: نواكشوط الغربية|translit=Nuwākshūṭ al-Gharbīyah) is a region in Mauritania. It comprises the three northeastern departments of Mauritania's capital city Nouakchott: Ksar, Sebkha and Tevragh-Zeina.[2] Its headquarters (HQ) are at Tevragh-Zeina and the Presidential Palace is located within its borders.
Nouakchott-Ouest was created on 25 November 2014 when the region of Nouakchott was split into three new regions.[3] Its wāli or governor is Mahi Ould Hamed, who was previously governor of the Nouakchott Region.[4]