The Theme of Hellas (Greek: θέμα Ἑλλάδος, Thema Hellados) was a Byzantine military-civilian province (thema, theme) located in southern Greece. The theme encompassed parts of Central Greece, Thessaly and, until c. 800, the Peloponnese peninsula. It was established in the late 7th century, and survived until the late 11th/12th century, when it was broken up into smaller districts.