| Gerano | |
| Official Name: | Comune di Gerano |
| Coordinates: | 41.9333°N 71°W |
| Region: | Lazio |
| Metropolitan City: | Rome (RM) |
| Mayor: | Danilo Felici |
| Area Total Km2: | 10.09 |
| Population Footnotes: | [1] |
| Population Total: | 1259 |
| Population As Of: | 31 December 2019 |
| Population Demonym: | Geranesi |
| Elevation M: | 502 |
| Postal Code: | 00025 |
| Area Code: | 0774 |
Gerano is a Italian: [[comune]] (municipality) in the Metropolitan City of Rome in the Italian region of Latium, located about 40km (30miles) east of Rome.
The year of foundation of Gerano is unknown; however, it is known that in 1005 it constituted a castrum.[2] In the Middle Ages, due to its strategic and economic importance, as the capital of Massa Giovenzana (replacing the more ancient Trellanum), for a while, Pope Gregory VII was interested in it, who in 1077 confirmed Gerano to be divided between the diocese of Tivoli and the abbot of Subiaco.