Parco naturale dei Monti Aurunci, Regional nature park in the provinces of Frosinone and Latina, Italy

Parco naturale dei Monti Aurunci is a regional nature park sitting between the provinces of Frosinone and Latina in central Italy. It covers a range of mountain ridges with steep rocky slopes, forested hillsides, and open peaks that look toward the Tyrrhenian Sea.

The park takes its name from the ancient Aurunci people, who lived in these coastal mountains long before the Roman period. The territory was officially set aside as a protected area in 1997.

The park's name comes from the Aurunci, the ancient people who inhabited these coastal mountains. Today the protected area spans ten municipalities: Campodimele, Fondi, Formia, Itri, Lenola and Spigno Saturnia in the province of Latina, and Ausonia, Esperia, Pico and Pontecorvo in the province of Frosinone. The park does not cover the whole Aurunci range.

By car, the park is reached from Rome via the SS 148 Pontina or the SS 7 Appia toward Terracina, Fondi and Formia, and from Naples via the SS 7 quater Domiziana then the SS 7 Appia; the A1 exits are Cassino, Ceprano and Pontecorvo. Formia station on the Rome-Naples line has buses to the park municipalities, with about two trains an hour in each direction; Fondi-Sperlonga and Itri are other useful stops. Buses also leave from Cassino and Frosinone.

The park's flora has been surveyed at over 1,900 species, including more than 50 wild orchids such as Ophrys lacaitae and Ophrys promontorii, plus about twenty natural hybrids. Beech woods begin only above 1,200 m on Monte Petrella and Monte Faggeto.