The following is a list of ecoregions in Spain, including the Canary Islands, Ceuta, Melilla, and the Plazas de soberanía, according to the Worldwide Fund for Nature (WWF).

Terrestrial ecoregions

Mediterranean forests, woodlands, and scrub

• Canary Islands dry woodlands and forests (Canary Islands)
• Iberian conifer forests
• Iberian sclerophyllous and semi-deciduous forests
• Mediterranean acacia-argania dry woodlands and succulent thickets (Canary Islands)
• Mediterranean woodlands and forests (Ceuta, Melilla, and Plazas de soberanía)
• Northeastern Spain and Southern France Mediterranean forests
• Northwest Iberian montane forests
• Southeastern Iberian shrubs and woodlands
• Southwest Iberian Mediterranean sclerophyllous and mixed forests

Temperate broadleaf and mixed forests

• Cantabrian mixed forests
• Pyrenees conifer and mixed forests

Freshwater ecoregions

• Atlantic Northwest Africa (Ceuta, Melilla, and Plazas de soberanía)
• Cantabric Coast - Languedoc
• Eastern Iberia
• Southern Iberia
• Western Iberia

Marine ecoregions

• Alboran Sea
• Azores Canaries Madeira
• South European Atlantic
• Western Mediterranean