Fosdinovo is a comune (municipality) in the Province of Massa and Carrara in the Italian region Tuscany, located about 110 kilometres (68 mi) northwest of Florence and about 15 kilometres (9 mi) northwest of Massa.

Fosdinovo borders the following municipalities: Aulla, Carrara, Castelnuovo Magra, Fivizzano, Ortonovo, Sarzana.

The town is home to a medieval castle of the Malaspina family, rulers of the duchy of Massa.

Near to the castle is the church of San Remigio, built in the 13th century by the Bishops of Luni.

Fosdinovo is twinned with: This Province of Massa-Carrara location article is a stub.