| Riano | |
| Coordinates: | 42.1°N 43°W |
| Region: | Lazio |
| Metropolitan City: | Rome (RM) |
| Frazioni: | Belvedere, Colle Romano, La Rosta |
| Mayor: | Luca Giovanni Attilio Abbruzzetti |
| Area Total Km2: | 25.43 |
| Population Footnotes: | [1] |
| Population Total: | 10668 |
| Population As Of: | 31 October 2017 |
| Elevation M: | 125 |
| Saint: | St. George |
| Day: | April 23 |
| Postal Code: | 00060 |
| Area Code: | 06 |
Riano is a Italian: [[comune]] (municipality) in the Metropolitan City of Rome in the Italian region of Latium. It is located about 20km (10miles) north of Rome, in the Tiber River valley, not far from Veio.
Riano borders the following municipalities: Castelnuovo di Porto, Monterotondo, Rome, Sacrofano.