Illyria Graeca

Epirus Ήπειρος
Historical region
Map of ancient Epirus by Heinrich Kiepert, 1902
Present status	Divided between Greece and Albania


The region of Epirus in the 20th century, divided between Greece and Albania. Grey: approx. extent of Epirus in antiquity; Orange: Greek region of Epirus; Green: approximate extent of largest concentration of Greeks in "Northern Epirus", early 20th century Red dotted line: Territory of Autonomous State of Northern Epirus

Epirus (/ᵻˈpaɪrəs/) is a geographical and historical region in southeastern Europe, now shared between Greece and Albania. It lies between the Pindus Mountains and the Ionian Sea, stretching from the Bay of Vlorë and the Acroceraunian mountains in the north to the Ambracian Gulf and the ruined Roman city of Nicopolis in the south. It is currently divided between the region of Epirus in northwestern Greece and the counties of Gjirokastër, Vlorë, and Berat in southern Albania. The largest city in Epirus is Ioannina, seat of the region of Epirus, with Gjirokastër the largest city in the Albanian part of Epirus.

A rugged and mountainous region, Epirus was the north-west area of ancient Greece. It was inhabited by the Greek tribes of the Chaonians, Molossians, and Thesprotians, and home to the sanctuary of Dodona, the oldest ancient Greek oracle, and the most prestigious one after Delphi. Unified into a single state in 370 BC by the Aeacidae dynasty, Epirus achieved fame during the reign of Pyrrhus of Epirus, whose campaigns against Rome are the origin of the term "Pyrrhic victory". Epirus subsequently became part of the Roman Empire along with the rest of Greece in 146 BC, which was followed by the Byzantine Empire.