| Castelfranci | |
| Official Name: | Comune di Castelfranci |
| Coordinates: | 40.9322°N 15.0442°W |
| Province: | (AV) |
| Mayor: | Generoso Cresta |
| Area Total Km2: | 11.69 |
| Population Footnotes: | [1] |
| Population Total: | 1996 |
| Population As Of: | 30 June 2017 |
| Population Demonym: | Castellesi |
| Elevation M: | 450 |
| Saint: | St. Nicholas of Bari |
| Day: | 9 May |
| Postal Code: | 83040 |
| Area Code: | 0827 |
Castelfranci (Neapolitan: Castafrancia; Irpino: Neapolitan: Castiella) is a town and comune in the province of Avellino, Campania, southern Italy.