Ayoun el Atrous

Ayoun al Atrous (also known as Aioun el Atrouss) (عيون العتروس) is a town in southern Mauritania. It is located at around 16.66667°N, -9.61667°W. It is the capital of Hodh El Gharbi region.

The city is served by the Aioun el Atrouss Airport, 4 mi north-west of the city. The town is located in the southern area of the Aoukar, a former lake basin.

Ayoun al Atrous was one of the stops in the 2007 Dakar Rally.