Mauritania Islamic Republic of Mauritania, commonly known as Mauritania is a country in northwest Africa. There is a coast on the western Atlantic. It has a territory in the southwest of Senegal. In the east and the southeast of Mali Northeast of Algeria And border on the northwest bordered by the area occupied by Morocco. Is the Western Sahara The nation's capital and largest city is Nouakchott, located on the Atlantic Ocean. The country of Mauritania is named after the Old Kingdom of Berber, the Kingdom of Mauretania.