Gossi is a town and rural commune in the Cercle of Gourma-Rharous of the Tombouctou Region of Mali, lying northeast of Hombori and southwest of Gao. The town is just to the west of the main RN15 highway that links Mopti with Gao. It is on a seasonal lake, Mare de Gossi, and is surrounded by nature reserves in which a large herd of elephants live. The town is the site of a large cattle market. The commune contains around 31 villages and in the 2009 census, it had a population of 24,521.