| Sant'Ambrogio sul Garigliano | |
| Official Name: | Comune di Sant'Ambrogio sul Garigliano |
| Coordinates: | 41.3833°N 65°W |
| Region: | Lazio |
| Province: | Frosinone (FR) |
| Mayor: | Sergio Messore |
| Area Total Km2: | 9.0 |
| Population Total: | 968 |
| Population As Of: | 28 February 2017[1] |
| Population Demonym: | Ambrosiani |
| Elevation M: | 137 |
| Postal Code: | 03040 |
| Area Code: | 0776 |
Sant'Ambrogio sul Garigliano is a comune (municipality) in the Province of Frosinone in the Italian region Lazio, located about 130km (80miles) southeast of Rome and about 50km (30miles) southeast of Frosinone.
Sant'Ambrogio sul Garigliano borders the following municipalities: Rocca d'Evandro, Sant'Andrea del Garigliano, Sant'Apollinare. During World War II, due to its position across the Gustav Line, it was mostly destroyed.
Sant'Ambrogio di Torino, since 2004 Sant'Ambrogio di Valpolicella, since 2004