Torre di Palidoro, Coastal defense tower in Fiumicino, Italy

Torre di Palidoro, also called Torre Perla, is a square-plan coastal tower about 20 metres high in the Palidoro locality of Fiumicino, north of Passoscuro. It was built on the ruins of a Roman villa and restored between 1562 and 1563 for the Archispedale di Santo Spirito in Sassia, which gave it its present appearance.

The tower was built between the 8th and 9th centuries to defend the coast from Saracen raids. In the 16th century, the Archispedale di Santo Spirito in Rome took charge of the site and had it restored.

Near the tower on 23 September 1943, Carabinieri vice brigadier Salvo D'Acquisto was shot; he had taken the place of civilians rounded up by German soldiers. He was later awarded the Gold Medal of Military Valor. The site is remembered for that episode, and the tower is also called Torre Perla.

The tower stands in the Palidoro locality of Fiumicino, north of Passoscuro along the Tyrrhenian coast, reached from the SS1 Aurelia or the Rome–Civitavecchia railway line. It is a roadside landmark rather than a staffed monument, so visitors see it from the outside; the surrounding flat Agro Romano ground gives a clear view of its square plan and 20-metre height.

The tower is also known as Torre Perla. It was built on the ruins of a Roman villa, and its present form dates to a restoration carried out between 1562 and 1563 for the Arcispedale di Santo Spirito in Sassia. It stands in the Palidoro locality of Fiumicino, north of Passoscuro.