Resuttano (Sicilian: Rastanu) is a comune (municipality) in the Province of Caltanissetta in the Italian region of Sicily, located about southeast of Palermo and about north of Caltanissetta. As of 1 January 2021, it had a population of 1,823 and an area of .
Resuttano borders the following municipalities: Alimena, Blufi, Bompietro, Petralia Sottana, Santa Caterina Villarmosa.
In 1337 Federico II d'Aragona (1272–1337), king of Sicily, stopped at Resuttano Castle to dictate his will there and caused the War of the Four Vicars between the Chiaramonte faction and the Ventimiglia faction.