Tanout is a department of the Zinder Region in Niger. Its administrative seat is the city of Tanout. As of 2011, the department had a total population of 475,125 people.
On 15 April 2010, the Council of Ministers announced that Amadou Seybou Dioffo, a retired Captain from the Niger Armed Forces, had been appointed prefect of the department.
Tanout Department is divided into six municipalities, listed with population as of 2011 census:
Coordinates: 14°45′N 8°20′E / 14.750°N 8.333°E