| Castel di Sasso | |
| Official Name: | Comune di Castel di Sasso |
| Coordinates: | 41.1833°N 31°W |
| Region: | Campania |
| Province: | Caserta (CE) |
| Mayor: | Antonio D'Avino |
| Area Total Km2: | 20.3 |
| Population Footnotes: | [1] |
| Population Total: | 1148 |
| Population As Of: | 31 March 2017 |
| Population Demonym: | Sassesi |
| Elevation M: | 200 |
| Saint: | St. Blaise |
| Day: | 3 February |
| Postal Code: | 81040 |
| Area Code: | 0823 |
Castel di Sasso is a comune (municipality) in the Province of Caserta in the Italian region Campania, located about 40km (30miles) north of Naples and about 14km (09miles) northwest of Caserta.
Castel di Sasso borders the following municipalities: Caiazzo, Capua, Liberi, Piana di Monte Verna, Pontelatone.