Aleg is the capital of the Brakna Region, Mauritania. It is located at 17°3′0″N 13°55′0″W / 17.05°N 13.916667°W / 17.05; -13.916667Coordinates: 17°3′0″N 13°55′0″W / 17.05°N 13.916667°W / 17.05; -13.916667.
The town is known as the birthplace of former President of Mauritania, Sidi Ould Cheikh Abdallahi.