Pietra Ligure () is a resort town and comune (municipality) in the Province of Savona in the Italian region Liguria, located about southwest of Genoa and about southwest of Savona. It is mainly a touristic city.
Pietra Ligure borders the following municipalities: Bardineto, Boissano, Borgio Verezzi, Giustenice, Loano, and Tovo San Giacomo.
Pietra Ligure is twinned with:
Pietra Ligure is named after its castle, Castrum et Oppidum Petrae, il "castello di pietra" (stone castle), built between the 7th and 8th century.