| Manziana | |
| Official Name: | Comune di Manziana |
| Coordinates: | 42.1333°N 20°W |
| Region: | Lazio |
| Metropolitan City: | Rome (RM) |
| Frazioni: | Quadroni |
| Mayor: | Bruno Bruni |
| Area Total Km2: | 23.8 |
| Population Total: | 6520 |
| Population As Of: | 2009[1] |
| Population Demonym: | Manzianesi |
| Elevation M: | 369 |
| Saint: | St. John the Baptist |
| Day: | 29 August |
| Postal Code: | 00066 |
| Area Code: | 06 |
Manziana is a Italian: [[comune]] (municipality) in the Metropolitan City of Rome in the Italian region of Latium, located about 40km (30miles) northwest of Rome.
Manziana borders the following municipalities: Bracciano, Canale Monterano, Oriolo Romano, Tolfa.