Greek National Road 8

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National Road 8
Εθνική Οδός 8
Route information
Length	230 km (140 mi)
History	Constructed: late 1890s–1900s
Major junctions
East end	central Athens
West end	central Patras
Location
Country	Greece
Regions	Attica, Peloponnese, West Greece
Major cities	Athens, Corinth, Aigio, Patras
Highway system
Highways in Greece Motorways National Roads

Greek National Road 8 (Greek: Εθνική Οδός 8, abbreviated as EO8, common name: old Athens-Patras national road) is a single carriageway with at-grade intersections in the Attica, Peloponnese and West Greece regions. It connects Athens with the cities of Corinth and Patras. Since the 1960s it has been replaced for most of its length with the National Road 8A, a limited-access toll road that bypasses most towns, as the major route to the Peloponnese. The EO8a has since been upgraded to the A8 motorway.

National Road 8 passes along the northern coast of the Saronic Gulf, through the Isthmus of Corinth and further, along the southern coast of the Gulf of Corinth, and ending in downtown Patras. It runs through five regional units: Central Athens, West Athens, West Attica, Corinthia and Achaea. Since the opening of National Road 8A it is mainly used for local traffic in the coastal towns.