Santa Severa is a frazione of the comune of Santa Marinella, in the province of Rome, Lazio, Italy. It is a small sea resort on the Via Aurelia, c. 8Â km (5Â mi) south of Santa Marinella and 50Â km (31Â mi) north of Rome.
It takes its name from the 2nd-century Christian martyr. The village includes a small medieval town with a 9th-century castle facing the sea, where the ancient Etruscan port of Pyrgi was once located. The Pyrgi Tablets were found here in 1964.