| Official Name: | Ksar el Khali |
| Native Name: | كصر الخالي |
| Pushpin Map: | Mauritania |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Mauritania |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name: | Mauritania |
| Subdivision Name1: | Adrar Region |
| Subdivision Type2: | Department |
| Subdivision Name2: | Chinguetti |
| Coordinates: | 20.9333°N -11.6167°W |
Ksar el Khali (Arabic: كصر الخالي) is a town in central-northern Mauritania. It is located in the Chinguetti Department in the Adrar Region.
Nearby towns and villages include Jraif (46.2 nm), Chinguetti (51.1 nm), and Casbah des Ait Maouine (86.5 nm).