The following is a list of ecoregions in Chad, according to the Worldwide Fund for Nature (WWF).
Terrestrial ecoregions
By major habitat type:
- East Saharan montane xeric woodlands
- Sahara Desert
- South Saharan steppe and woodlands
- Tibesti-Jebel Uweinat montane xeric woodlands
Freshwater ecoregions
By bioregion:
