Villanovafranca (Biddanoa Franca, Bidda Noa Franca in Sardinian) is a comune (municipality) in the Province of South Sardinia in the Italian region Sardinia, located about 50 kilometres (31 miles) north of Cagliari and about 13 kilometres (8 mi) northeast of Sanluri.

Villanovafranca borders the following municipalities: Barumini, Escolca, Gesico, Guasila, Las Plassas, Villamar.

Big attractions are the nuraghe Su Mulinu with its homonym museum and the church of San Lorenzo.

The famous scholar Goffredo Casalis in his works, at the end of the list of the Marmilla villages, wrote: "[...] from Arbarei [...] to Villanovaforru and Villanovafranca.

The current town was built in the Aragonese period (around the 15th century), and in 1541 it was incorporated into the Barony of Las Plassas, a fief of the Zapata family.