town, Campania regione, southern Italy. It lies on the Bay of Naples, southwest of Vesuvius (volcano) and just southeast of Naples. As a medieval fief Portici was owned by various princely families before passing to the Kingdom of Naples. It was completely destroyed by the eruption of Vesuvius in 1631. Italy's first railway (Portici-Naples) was inaugurated there in 1839. Portici's most famous landmark is the ornate royal palace, begun in 1738 by Charles of Bourbon, king of the Two Sicilies (later Charles III, king of Spain), which houses the agriculture faculty of the University of Naples and relics from the nearby archaeological site of Herculaneum.

Portici is on the Naples-Salerno railway and has a small but busy port. Fishing and agriculture (apples, pears, olives, nuts, and hemp) are carried on, and wine, fertilizer, and silk are produced. Pop. (2006 est.) mun., 57,059.