Civitavecchia [tʃivitaˈvɛkkja] is a town and comune of the province of Rome in the central Italian region of Lazio. A sea port on the Tyrrhenian Sea, it is located 80 kilometers west-north-west of Rome, across the Mignone river. The harbor is formed by two piers and a breakwater, on which is a lighthouse. The name Civitavecchia means "ancient town".