Falvaterra is a comune (municipality) in the Province of Frosinone in the Italian region Lazio, located about southeast of Rome and about 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 .