Galleria Umberto I is a public shopping gallery in Naples, southern Italy. It is located directly across from the San Carlo opera house. It was built between 1887 and 1890, and was the cornerstone in the decades-long rebuilding of Naples—called the risanamento —that lasted until World War I. It was designed in the Stile Umbertino by Emanuele Rocco, who employed modern architectural elements reminiscent of the Galleria Vittorio Emanuele II in Milan.