Castellammare di Stabia lies next to the ancient Roman city of Stabiae, which was destroyed by the Vesuvio eruption in AD 79. The castle the city takes its name from was erected in around the 9th century on a hill commanding the southern side of the Gulf of Naples. It was restored during the reign of Frederick II of Hohenstaufen and enlarged by King Charles I of Anjou.
The comune, previously called Castellamare, assumed the name Castellammare on January 22, 1863, and the current name on May 31, 1912
