The following is a list of ecoregions in Chad, according to the Worldwide Fund for Nature (WWF).
Terrestrial ecoregions By major habitat type:
Tropical and subtropical grasslands, savannas, and shrublands
East Sudanian savanna Sahelian Acacia savanna
Flooded grasslands and savannas
Lake Chad flooded savanna
Deserts and xeric shrublands
East Saharan montane xeric woodlands Sahara Desert South Saharan steppe and woodlands Tibesti-Jebel Uweinat montane xeric woodlands
Freshwater ecoregions By bioregion:
Nilo-Sudan
Dry Sahel Lake Chad catchment