Brakna (Arabic: ولاية البراكنة) is a region in south-west Mauritania. Its capital is Aleg. Other major cities/towns include Boghé. The region borders the Mauritanian region of Tagant to the north-east, the Mauritanian regions of Assaba and Gorgol to the south-east, Senegal to the south-west and the Mauritanian region of Trarza to the north-west. The Sénégal River runs along the region's border with Senegal.