Torre Ranieri, Medieval tower in Naples, Italy.

Torre Ranieri is a square-plan medieval tower on Via Manzoni in the Posillipo district of Naples. It rises four storeys above ground, two of them within a battered base, and its interior is completely bare, without architectural elements. It was attached to the fortified masseria of the Ranieri family and has been restored several times; it remains in private hands.

Torre Ranieri dates from the early Middle Ages and was attached to the fortified masseria of the Ranieri family. It did not serve as a direct control or defence point for Naples but as a means of private protection. Over the years it underwent several restorations and remains in private ownership.

The name comes from the Ranieri family, whose fortified masseria the tower belonged to; it was private protection, not part of the city's defences. The building is now in private hands, so visitors see it from Via Manzoni in Posillipo rather than inside.

Torre Ranieri stands on Via Manzoni in the Posillipo district, west of Naples' historic centre. It is a private property, so the four-storey square tower is seen from the street rather than entered; its bare interior is not open to visitors.

The tower's two lower floors form a battered base, wider at the bottom, a detail visible from Via Manzoni. Inside, the four-storey square structure is completely bare, with no architectural elements left. It remains in private hands after several restorations.