| Mhaïreth | |
| Settlement Type: | Oasis |
| Pushpin Map: | Mauritania |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Mauritania |
| Subdivision Type: | Country |
| Subdivision Name: | Mauritania |
| Subdivision Type1: | Region |
| Subdivision Name1: | Adrar Region |
| Leader Title: | Mayor |
| Unit Pref: | Imperial |
| Utc Offset: | ±00:00 |
| Coordinates: | 20.2639°N -13.0056°W |
Mhaïreth or M'Heirth is one of the largest oases of the Adrar region in Mauritania. It is located near Terjit. Mhaïreth is part of the commune of Maaden in the Aoujeft Department.[1]