| Monte San Giacomo | |
| Official Name: | Comune di Monte San Giacomo |
| Coordinates: | 40.35°N 47°W |
| Province: | (SA) |
| Area Total Km2: | 51 |
| Population Footnotes: | [1] |
| Population Total: | 1653 |
| Population As Of: | 1 April 2009 |
| Population Demonym: | Sangiacomesi |
| Saint: | San Giacomo il Maggiore and Sant'Anna |
| Day: | 25 July and 26 July |
| Postal Code: | 84030 |
| Area Code: | 0975 |
| Istat: | 065075 |
Monte San Giacomo is a town and comune in the province of Salerno in the Campania region of south-western Italy.
The municipality borders with Piaggine, Sanza, Sassano and Teggiano.