Tarquinia (Italian: [tarˈkwiːnja]), formerly Corneto, is an old city in the province of Viterbo, Lazio, Italy known chiefly for its ancient Etruscan tombs in the widespread necropoleis or cemeteries which it overlies, for which it was awarded UNESCO World Heritage status.

In 1922 it was renamed after the ancient city of Tarquinii (Roman) or Tarch(u)na (Etruscan). Although little is visible of the once great wealth and extent of the ancient city, archaeology is increasingly revealing glimpses of past glories.

The Etruscan and Roman city is situated on the long plateau of La Civita to the north of the current town.

The ancient burial grounds (necropoleis), dating from the Iron Age (9th century BC, or Villanovan period) to Roman times, were on the adjacent promontories including that of today’s Tarquinia.

The Italian wine DOC of Tarquinia produces red, white frizzante style wine. The grapes are limited to a harvest yield of 12 tonnes/ha with finished wines needing a minimum 10.5% alcohol level. The reds are a blend of at least 60% Sangiovese and/or Montepulciano, up to 25% Cesanese and up to 30% of other local red grape varieties such as Abbuoto. The whites are composed of at least 50% Trebbiano and/or Giallo, up to 35% Malvasia and up to 30 other local grape varieties with the exception of Pinot grigio that is specifically excluded from the DOC wines of Tarquinia.