Mondello, Art Nouveau beach resort in Palermo, Italy

Mondello is a coastal settlement in northwestern Palermo, Sicily, known for its Art Nouveau villas and sandy beach. The beach lies in a protected bay between two mountains and is bordered by a promenade lined with historic buildings from the early twentieth century.

In 1911 the Municipality of Palermo signed an agreement with an Italian-Belgian company to build a new garden-city district for wealthier classes on the drained Valdesi marsh. Leading architects of the Palermo modernist school, including Ernesto Basile and his students, designed Liberty-style villas along the seafront. The district became the city's main seaside resort while remaining largely residential.

The name most likely derives from the Arabic Al Mondellu, "the swamp", for the marsh that lay on the south-eastern side of the bay during the 10th- and 11th-century Islamic rule of Sicily; Muslim sailors called the little port Marsa 'at Tin, "port of mud". The two coastal towers built against Barbary corsair raids still stand, one by the old fishing complex, the other on the rock spur closing the bay to the north-west.

The beach is reachable from Palermo city center within thirty minutes by public transport and offers both free access and managed sections along its shoreline. On summer weekends, the beach and promenade fill up quickly, while spring and autumn provide quieter conditions.

The Charleston bathing house was built in the early twentieth century on stilts over the water and originally served as a pier with a platform. The structure rests directly on the seabed and extends several dozen meters into the bay.