Boubon is a large village in southwestern Niger, 27.8 km to the northwest of the centre of the capital Niamey. It lies on the left bank of the Niger River in the Commune of Karma, Department of Kollo, Region of Tillabéry. On the eastern side Boubon is bordered by the sandy bed of an intermittent stream, the Guendiora, that flows into the Niger here. On the northern and western sides, Boubon is hemmed in by low rocky slopes of the Nigérien plateau. The road from Niamey to Boubon is tarmacked. Facing Boubon on the opposite shore of the Niger River are the villages Béri, Dambou Béri, Sarando Béné and Sarando Ganda.