Greek National Road 8a was a toll road in the Attica, Peloponnese and West Greece regions. It connected Athens with the cities of Corinth and Patras. It was built in the 1960s as a replacement for the old National Road 8 as the major route to the Peloponnese, and bypasses most towns. The National Road 8a has gradually been upgraded to a motorway, the A8. Since April 2017, the complete length of the A8 motorway has been operational.
Greek National Road 9 is a single carriageway with at-grade intersections in the West Greece and Peloponnese regions. It runs along the west coast of the Peloponnese peninsula, from Patras to Methoni via Pyrgos. Its length is around 220 km (140 mi), making it the second-longest national highway of Greece.
Greek National Road 33 is a single carriageway road in southern Greece. It connects Patras with the Greek National Road 74 near Levidi, passing through the western and southern foothills of Mount Erymanthos.
Imathia is one of the regional units of Greece. It is part of the region of Central Macedonia. The capital of Imathia is the city of Veroia.
Greek National Road 3 is a single carriageway road in Greece. It connects Eleusis near Athens with the border of North Macedonia at Niki. It passes through Larissa and Florina. At Niki, it connects with the M5K motorway to Bitola. Greek National Road 3 is one of the longest highways in Greece and until the 1960s it served as the main route from Larissa to Thessaloniki. The new A1 motorway now offers a faster connection to Thessaloniki. Most of the EO3, except the southernmost section between Eleusis and Bralos, is part of the E65.
Greek National Road 6 is a national road in north-central Greece. It begins at the port of Igoumenitsa and ends at Volos, passing through the towns Ioannina, Metsovo, Trikala and Larissa. The section between Metsovo and Volos is part of the European route E92. The road runs through five regional units and the regions of Epirus and Thessaly.
Greek National Road 8 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 National Road 8A has been upgraded to a motorway, the Olympia Odos (A8).
Greek National Road 27 is a single carriageway road in central Greece. It connects the Greek National Road 3 at Bralos, south of Lamia, with the GR-48 near Itea, passing through Amfissa. It is part of the European route E65. The road passes through the regional units Phocis and Phthiotis.
Greek National Road 76 is a single carriageway road in southern Greece. It connects the Greek National Road 9 near Krestena with Megalopoli, via Andritsaina and Karytaina. It runs through the western and the central part of the Peloponnese, in the regional units Elis and Arcadia.
Greek National Road 82 is a single carriageway road in southern Greece. It connects Pylos with Sparti via Kalamata. It passes through the regional units Messenia and Laconia, on the Peloponnese peninsula. Its length is 110 km.
Greek National Road 89 is a road in East Attica, Greece. It connects Gerakas, an eastern suburb of Athens, with Sounio, via Koropi and Lavrio. Between Gerakas and Koropi it has lost importance after the opening of the Motorway 6. There are plans to upgrade the section between Koropi and Lavrio to motorway standards, by constructing junctions to replace the traffic lights and generally upgrading the road. This new road will carry the designation A61.
Greek National Road 13 is a single carriageway road in northern Greece. It connects Katerini with the Greek National Road 3 at Mikro Eleftherochori, 8 km north of Elassona.
Greek National Road 15 is a single carriageway road in northern Greece. It connects Agios Germanos, near the border with the Republic of Macedonia, with the Greek National Road 6 near Kalampaka. It passes through Kastoria, Siatista and Grevena.
Greek National Road 39 is a national highway of Greece. It connects Tripoli with Gytheio via Sparti. It is connected with the Greek National Road 7 in Tripoli, with the Moreas Motorway south of Tripoli, with the Greek National Road 82 in Sparti, and with the Greek National Road 86 in Krokees. Until 2016, the EO39 coincided with the European route E961 for most of its length, now it is mainly designated on the A71.
Greek National Road 81 is a single carriageway road in Attica, Greece. It connects the northern suburbs of Athens with Kalamos, near the north coast of Attica.
Greek National Road 1 is the old single carriageway road connecting Athens with Thessaloniki and Evzonoi, the border crossing between Greece and the Republic of Macedonia. For most of its length, it has been replaced by the new A1 motorway.
Greek National Road 17 is a single carriageway road in northwestern Greece. It connects Ioannina with Dodoni, via Bizani.
Greek National Road 4a is a dual carriageway road in northern Greece. It connects Veria with Skydra, passing through Naoussa.
Greek National Road 29 is a single carriageway road in central Greece. It connects Itea, Phocis with Steiri.
