Villasalto (, ) is a comune (municipality) in the Metropolitan City of Cagliari in the Italian region Sardinia, located about northeast of Cagliari. As of 31 December 2004, it had a population of 1,282 and an area of .
Villasalto/Biddesatu borders the following municipalities: Armungia, Burcei, Dolianova, San Nicolò Gerrei, San Vito, Sinnai, Villaputzu.