| Vallemaio | |
| Official Name: | Comune di Vallemaio |
| Coordinates: | 41.3667°N 62°W |
| Region: | Lazio |
| Province: | Frosinone (FR) |
| Mayor: | Fernando Tommaso De Magistris |
| Area Total Km2: | 19.6 |
| Population Footnotes: | [1] |
| Population Total: | 907 |
| Population As Of: | 30/11/2019 |
| Population Demonym: | Vallemaiesi or Vallefreddani |
| Elevation M: | 337 |
| Saint: | Thomas The Apostle |
| Day: | 7 July |
| Postal Code: | 03040 |
| Area Code: | 0776 |
Vallemaio is a comune (municipality) in the Province of Frosinone in the Italian region Lazio, located about 120km (80miles) southeast of Rome and about 50km (30miles) southeast of Frosinone.
Vallemaio borders the following municipalities: Castelforte, Castelnuovo Parano, Coreno Ausonio, San Giorgio a Liri, Sant'Andrea del Garigliano, Sant'Apollinare.
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.