The Duchess's Fountain is one of the monumental fountains in Naples; it is located next to the Basilica of the Incoronata Mother of Good Counsel.

The structure was built in 1939 at the behest of Elena d'Orléans, wife of Emanuele Filiberto of Savoy-Aosta. It was a gift from the Duchess to the city and was built according to designs by Giovanni Mongiello and Amedeo Teotolato. The structure is divided by pillars and lateral arches; under the central panel there is a coat of arms that shows a sonnet by Saint Francis, followed by the phrase "Donated by Elena Duchess of Aosta."

On the cornice there is a plaque and an obelisk that bears the date of the structure's founding. The fountain is finally characterized by five lion's mouths from which water flows.

Aurelio De Rose, The Fountains of Naples, Rome, Newton & Compton, 1994.