(anc. Velitra), a town of the Papal States, in the Comarca, and 21 miles S.E. of Rome. It stands on the lower slopes of Monte Artemisio, which overhangs the Pontine marshes; and it is enclosed with ruinous walls, and irregularly and meanly built. It has a large square, containing a statue of Pope Urban VII., and a fine church with a lofty tower. There is also here a cathedral, a handsome town-hall, and two private palaces, one of which formerly contained the Borgian museum, now at Naples. The neighbourhood of Velletri is celebrated for its wine, and the beauty of the women of the town has been noted by many travellers. The ancient Velitra was an important Volscian city destroyed by the Romans, but afterwards rebuilt. In 1734, Carlo Borbone, king of Naples, gained, near Velletri, a decisive victory over the Austrians, which secured the kingdom of the two Sicilies to the Spanish Bourbons. Pop. 10,000.