Falvaterra is a comune (municipality) in the Province of Frosinone in the Italian region Lazio, located about 100 kilometres (62 mi) southeast of Rome and about 20 kilometres (12 mi) southeast of Frosinone.

Falvaterra borders the following municipalities: Arce, Castro dei Volsci, Ceprano, Pastena, San Giovanni Incarico. It is the seat of the eponymous karst grottoes, having a length of more than 5 kilometres (3 mi).