Wadi Howar (Wadi Howa) is a wadi in Sudan and Chad. It travels approximately 400 kilometres in a northeasterly direction from the Ouaddaï highlands in Chad across the North Darfur state of Sudan, before losing itself in the Libyan Desert. Towards its western end it forms a part of the international boundary between Sudan and Chad, separating the West Darfur state of Sudan and the Borkou-Ennedi-Tibesti Region of Chad.
The wadi is the remnant of the ancient Yellow Nile, a tributary of the Nile from about 8000 to 1000 BCE. It met the Nile near the southern point of the Great Bend.
- ^ Keding, B (2000). "New data on the Holocene occupation of the Wadi Howar region (Eastern Sahara/Sudan)." Studies in African Archaeology 7, 89–104.
Coordinates: 18°03′26″N 30°56′55″E / 18.05722°N 30.94861°E