List of ecoregions in Mauritania
The following is a list of ecoregions in Mauritania, according to the Worldwide Fund for Nature (WWF).
Terrestrial ecoregions
- Atlantic coastal desert
 - North Saharan steppe and woodlands
 - Sahara desert
 - South Saharan steppe and woodlands
 - West Saharan montane xeric woodlands
 
Freshwater ecoregions
- Dry Sahel
 - Senegal-Gambia Catchments
 - Temporary Maghreb
 
Marine ecoregions
- Sahelian Upwelling
 
References
- Burgess, Neil, Jennifer D’Amico Hales, Emma Underwood (2004). Terrestrial Ecoregions of Africa and Madagascar: A Conservation Assessment. Island Press, Washington DC.
 - Spalding, Mark D., Helen E. Fox, Gerald R. Allen, Nick Davidson et al. "Marine Ecoregions of the World: A Bioregionalization of Coastal and Shelf Areas". Bioscience Vol. 57 No. 7, July/August 2007, pp. 573–583.
 - Thieme, Michelle L. (2005). Freshwater Ecoregions of Africa and Madagascar: A Conservation Assessment. Island Press, Washington DC.