| Castelletto sopra Ticino | |
| Official Name: | Comune di Castelletto sopra Ticino |
| Coordinates: | 45.7167°N 46°W |
| Region: | Piedmont |
| Province: | Novara (NO) |
| Frazioni: | Aronco, Beati, Buzzurri, Glisente, Landa, Curone, Valloni, Verbanella |
| Mayor: | Massimo Stilo |
| Area Total Km2: | 14.64 |
| Population Total: | 10259 |
| Population As Of: | 31 December 2010[1] |
| Population Demonym: | Castellettesi |
| Elevation M: | 226 |
| Saint: | St. Anthony the Abbot |
| Postal Code: | 28053 |
| Area Code: | 0331 |
Castelletto sopra Ticino, also referred to by locals as Castelletto Ticino or just Castelletto, is a comune (municipality) in the Province of Novara in the Italian region of Piedmont, located about 100km (100miles) northeast of Turin and about 30km (20miles) north of Novara. Celtic inscriptions have been found.[2]
It is the birthplace of the immunologist Serafino Belfanti. It is also where singer Billy More is buried.