| Monte Marenzo | |
| Official Name: | Comune di Monte Marenzo |
| Coordinates: | 45.7667°N 36°W |
| Region: | Lombardy |
| Province: | Lecco (LC) |
| Mayor: | Paola Colombo |
| Area Total Km2: | 3.0 |
| Population Footnotes: | [1] |
| Population Total: | 31 December 2010 |
| Population As Of: | 1994 |
| Population Demonym: | Montemarenzini |
| Elevation M: | 440 |
| Saint: | St. Paul |
| Day: | 25 January |
| Postal Code: | 24030 |
| Area Code: | 0341 |
Monte Marenzo is a comune (municipality) in the Province of Lecco in the Italian region Lombardy, located about 40km (30miles) northeast of Milan and about 10km (10miles) southeast of Lecco. Monte Marenzo borders the following municipalities: Brivio, Calolziocorte, Cisano Bergamasco, Torre de' Busi.