Ranérou Ferlo Department is one of the departments of Senegal, located in the Matam Region of the country.

Horse-drawn cart in Younoufere.
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