Vallemaio is a comune (municipality) in the Province of Frosinone in the Italian region Lazio, located about 120 km southeast of Rome and about 50 km southeast of Frosinone. Vallemaio borders the following municipalities: Castelforte, Castelnuovo Parano, Coreno Ausonio, San Giorgio a Liri, Sant'Andrea del Garigliano, Sant'Apollinare.

Etymology

Before 1932, the name of the commune was Vallefredda, a toponym which emphasized the harsh climate that one has in winter. However, considering it lies on the slopes of the Mount Maio, it was renamed in 1932.