List of ecoregions in Mauritania

Terrestrial ecoregions

[Tropical and [subtropical grasslands, savannas, and shrublands]]

• Sahelian Acacia savanna
• West Sudanian savanna

[Flooded [grasslands and savannas]]

• Saharan halophytics

[Deserts and [xeric shrublands]]

• 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