The following is a list of ecoregions in Greece as identified by the World Wide Fund for Nature (WWF).
Terrestrial
Greece is in the Palearctic realm. Ecoregions are listed by biome.
Temperate broadleaf and mixed forests
Mediterranean forests, woodlands, and shrub
- Illyrian deciduous forests
- Pindus Mountains mixed forests
- Aegean and Western Turkey sclerophyllous and mixed forests
- Crete Mediterranean forests
Freshwater
- Aegean drainages
- Ionian drainages
- Southeast Adriatic drainages
- Thrace
- Vardar
- Western Anatolia
Marine
Greece's seas are in the Mediterranean Sea marine province of the Temperate Northern Atlantic marine realm.