| Castellammare di Stabia | |
| Coordinates: | 40.6947°N 14.4803°W |
| Region: | Campania |
| Metropolitan City: | Naples (NA) |
| Frazioni: | Fratte, Madonna della Libera, Pioppaino, Ponte Persica, Pozzano, Privati, Quisisana, Scanzano, Varano |
| Mayor: | Luigi Vicinanza[1] |
| Area Total Km2: | 17.71 |
| Population Footnotes: | [2] |
| Population Total: | 66164 |
| Population As Of: | 1 January 2017 |
| Population Demonym: | Stabiesi |
| Elevation M: | 6 |
| Saint: | Saint Catellus |
| Day: | 19 January |
| Postal Code: | 80053 |
| Area Code: | 081 |
Castellammare di Stabia (pronounced as /it/; Neapolitan: Castiellammare 'e Stabbia) is a Italian: [[comune]] (municipality) in the Metropolitan City of Naples, Campania region, in southern Italy. It is situated on the Bay of Naples about southeast of Naples, on the route to Sorrento.
See main article: Stabiae.
Castellammare di Stabia lies next to the ancient Roman city of Stabiae, which was destroyed by the eruption of Mount Vesuvius in AD 79. The castle, of the city it takes its name from, was erected 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 22 January 1863, and the current name on 31 May 1912.
The excavation of Roman villas preserved by the eruption of Vesuvius in AD 79 is currently underway. Villa Arianna and Villa San Marco can be visited and do not charge for admission.
Castellammare is known as the Metropole of the waters for its hydrological heritage of 28 different kinds of waters, divided in sulphurous, calcic bicarbonate and mineral water, each one with a particular healthy property. The thermal bath has been a huge part of the economic life as well as of the tourism of Castellammare since the 19th century. To take advantage of the waters’ property there are two different thermal baths, one in the historical centre of the town and the other on the hill. Besides, the two most important waters of Castellammare, Acqua della Madonna and Acetosella, have been known since the time of Pliny the Elder, who suggested to drink them in case of calculosis, today they are sold as far away as America.
The Ancient Thermal Baths were inaugurated in 1836 and since the beginning had a very important role for the citizens and also for the tourists coming in summer for the thermal cure, making the city very crowded. Because of this overcrowding the building was enlarged with new pavilions and pools for the thermal cures of the body, like a real spa but it was also a cultural centre where many art exhibitions, cultural events and concerts were held. On 26 February 1956 began the destruction of the ancient building to make way for today's building. At the end of the 1980s the thermal building was in crisis because most of its offered treatments were closed, even if today they are offered in the New Thermal Baths. Today the Ancient Baths opens only few hours a day for bathing. In summer there are some cultural events. In the summer of 2007 the renovation of the building began so it can resume the many thermal services, however due to political neglect and governance issues the ancient thermal baths remain closed as of 2024.
The New Thermal Baths, located on the hill of the Solaro, near the district of Scanzano, was inaugurated on 26 July 1964. This building has two zones: one zone is the building dedicated to the thermal cure and then there is the park for the hydroponic cure. The building for the thermal cure offers the chance of practicing physiotherapy, hyperbaric medicine, massages, mud baths, inhalation of the sulphurous waters, rehabilitating, dermatological, aesthetic and gynaecological cures. Instead the hydroponic park allows practicing hydrotherapy, that is drinking the specific kind of water to cure specific pathologies, while walking through the park. Moreover, in summer in the park there are many events, during mornings and evenings, such as concerts, open cinema, exhibitions and conventions. Because of lack of demand and political turmoil, the new thermal baths remain closed as of 2024.
Castellammare borders with the municipalities of Gragnano, Pimonte, Pompei, Santa Maria la Carità, Torre Annunziata and Vico Equense.
It counts the hamlets (frazioni) of Fratte, Madonna della Libera, Pioppaino, Ponte Persica, Pozzano, Privati, Quisisana, Scanzano and Varano.
The local football team, Società Sportiva Juve Stabia is an Italian football club based in Castellammare di Stabia, Campania. Juve Stabia will play in Serie B, the second tier of Italian football system, following their promotion ahead of the 2024-25 season.