Palazzo Barbaja, Naples, Palace in San Ferdinando district, Naples, Italy.

Palazzo Barbaja is a monumental palace on Via Toledo, opposite the Centrale funicular in the San Ferdinando district. Its ground floor and mezzanine are clad in smooth piperno ashlar, and the simple portal has rusticated pilasters, a thin cornice and a keystone. Giant Ionic pilasters in stucco mark the central section of the first two upper floors.

The palace was built in the 16th century and underwent major renovation during the 18th century. In the 1800s it became the residence of theater impresario Domenico Barbaja, from whom the palace takes its current name.

The palace is named after Domenico Barbaja, the theatre impresario who lived here; his name replaced that of the earlier building. Gioachino Rossini stayed in these rooms between 1815 and 1822 while under contract with the Teatro del Fondo, and Barbaja once locked him in until he finished the music for Otello.

Palazzo Barbaja faces the Centrale funicular station on Via Toledo, so the facade is seen from the opposite side of the street. The building is in use and not open as a monument; the portal with rusticated pilasters, cornice and keystone is viewed from the public pavement.

Domenico Barbaja once locked Gioachino Rossini in his room at the palace, threatening to keep him there until he finished setting Francesco Berio di Salsa's Otello to music. Rossini had been idle for six months under his contract with the Teatro del Fondo, and Berio, the librettist, lived in the nearby Palazzo Berio.