戈西是马里的城镇，位于该国北部，由通布图区的古马拉鲁省负责管辖，面积15,000平方公里，海拔高度279米，2009年人口24,521，人口密度每平方公里1.6人。

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. Most of the population are nomadic pastoralists but there are permanent settlements around Lake Gossi, Lake Ebanguemalène and Lake Agoufou.