Ivrea (Italian: [iˈvrɛːa]; Piedmontese: Ivrèja [iˈʋrɛja]; French: Ivrée; Latin: Eporedia) is a town and comune of the Metropolitan City of Turin in the Piedmont region of northwestern Italy.

Situated on the road leading to the Aosta Valley (part of the medieval Via Francigena), it straddles the Dora Baltea and is regarded as the centre of the Canavese area.

However, the town first officially appears in history as an outpost of the Roman Republic founded in 100 BC, probably built to guard one of the traditional invasion routes into northern Italy over the Alps.

It was a subsidiary title of the king of Sardinia, although the only Marquis of Ivrea was Benedetto of Savoy (who later fought in the French Revolutionary wars).

UNESCO, when it designated the city a World Heritage Site, said that it "expresses a modern vision of the relationship between industrial production and architecture.

This involves some thousands of townspeople, divided into nine combat on-the-ground teams, who throw oranges at tens of cart-based teams—with considerable violence—during the last three fat carnival days: Sunday, Monday and Tuesday.

The legend has that a miller's daughter (the eponymous "Mugnaia") once refused to accept the "right" of the local duke to spend a night with each newlywed woman and chopped his head off.

In 1994, an estimate of 265,000 kilograms (584,000 lb) of oranges was brought to the city, mainly coming from the leftovers of the winter crop in southern Italy.