Venezia | Belluno | Padova | Rovigo |
| Treviso | Verona | Vicenza |

The Venetic period:
Between 2nd and 1st millenniums BC the region was inhabited first by the Euganei. According to ancient historians, the Veneti (sometimes called the Paleo-Veneti), came from the Balkans at the time of the Fall of Troy, led by prince Antenor, a comrade of Aeneas. In 7th-6th centuries BC the local populations of the Veneto entered into contact with the Etruscans and Greeks. Venetic culture reached a highpoint during the 4th c. B.C. and the Veneti were especially known for their trade in amber, which they acquired from the Baltic, and for their breeding of horses. Cities established by the Veneti include Este, Padua, Oderzo, Adria, Vicenza, Verona, and Altino. See also:
The Roman period:
During the 3rd Century B.C., the Veneti, together with the Cenomani Celts on their western border, sided with the Romans as Rome expanded and struggled against the Insubri and Boi Celts. During the Second Punic War (218 B.C. – 202 B.C.), the Veneti sent a contingent of soldiers to fight alongside Rome against Hannibal and the invading Carthaginians. Veneti were among those slaughtered at the Battle of Cannae (216 B.C.). In 181 B.C., a Roman triumvirate of Publius Scipio Nasica, Caius Flaminius and Lucius Manlius Acidinus led three thousand families, mainly from Samnium but supplemented by native Veneti, to found a Latin colony at Aquileia as a base to protect the territory of the Veneti from incursions of the hostile Carni and Istri. Over time, Roman influence increased. In 148 B.C. the Via Postumia was completed connecting Aquileia to Genua. In 131 B.C., the Via Annia connected Adria to Patavium to Altinum to Concordia to Aquileia. Gradually, the Roman Republic transformed its alliance with the Veneti into a relationship of dominance. After the 91 B.C. Italic rebellion, the cities of the Veneti, together with the rest of Transpadania, were granted partial rights of Roman citizenship according to the Lex Pompeia Transpadanis. Later in 49 B.C., by the Lex Rubria de Gallia Rome granted full Roman citizenship to the Veneti. Such citizens would have benefitted from the Via Claudia completed in 46 B.C. and connecting Altinum to Tarvisium to Feltria to Tridentum (modern Trento).
Tridentum it continued north to Pons Drusus and south through Verona to Mutina (modern Modena).] After the Battle of Philippi (42 B.C.), which ended the Roman Civil War, the lands of the Veneti, together with the rest of Cisalpine Gaul, ceased to be a province and the territory of the Veneti with Aquileia as its capital became region X (Venetia et Istria) of a new entity named Italia (Italy). In the Roman empire Patavium (modern Padua) became one of the most important cities of northern Italy. Gradually Venetic cities such as Opitergium (modern Oderzo), Tarvisium (modern Treviso), Feltria (modern Feltre), Vicetia (modern Vicenza), Ateste (modern Este), and Altinum (modern Altino) were Romanized.