The following is a list of ecoregions in Portugal, including the Azores and Madeira, according to the Worldwide Fund for Nature (WWF).

Terrestrial ecoregions

Mediterranean forests, woodlands, and scrub

• Iberian sclerophyllous and semi-deciduous forests
• Northwest Iberian montane forests
• Southwest Iberian Mediterranean sclerophyllous and mixed forests

Temperate broadleaf and mixed forests

• Azores temperate mixed forests
• Cantabrian mixed forests
• Madeira evergreen forests

Freshwater ecoregions

• Southern Iberia
• Western Iberia

Marine ecoregions

• Azores Canaries Madeira
• South European Atlantic

References

• 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.