| Piedimonte San Germano | |
| Official Name: | Comune di Piedimonte San Germano |
| Coordinates: | 41.5°N 57°W |
| Region: | Lazio |
| Province: | Frosinone (FR) |
| Mayor: | Gioacchino Ferdinandi |
| Area Total Km2: | 17.39 |
| Population Footnotes: | [1] |
| Population Total: | 6515 |
| Population As Of: | 28 February 2017 |
| Population Demonym: | Pedemontani |
| Elevation M: | 115 |
| Saint: | St. Amasius |
| Postal Code: | 03030 |
| Area Code: | 0776 |
Piedimonte San Germano (locally Prmont) is a comune (municipality) in the province of Frosinone in the Italian region of Lazio, located in the Liri River valley about 110km (70miles) southeast of Rome and about 35km (22miles) southeast of Frosinone.
It is home to the Fiat Cassino Plant production plant.