Ranérou Ferlo Department is one of the departments of Senegal, located in the Matam Region of the country.
The only commune located within the department is the capital Ranérou. The rural districts (communautés rurales) comprise:
- Arrondissement de Vélingara:
- Lougré Thioly
- Oudalaye
- Vélingara
In the census of 2002, the population was 41,660. In 2005, it was estimated at 48,475.
Coordinates: 15°18′N 13°58′W