| Sant'Arpino | |
| Official Name: | Comune di Sant'Arpino |
| Coordinates: | 40.9575°N 14.2492°W |
| Region: | Campania |
| Province: | Caserta (CE) |
| Mayor: | Giuseppe Dell'Aversana |
| Area Total Km2: | 3.2 |
| Population Total: | 14281 |
| Population As Of: | 31 August 2015 |
| Population Demonym: | Santarpinesi |
| Elevation M: | 43 |
| Saint: | Sant'Elpidio |
| Day: | 24 May |
| Postal Code: | 81030 |
| Area Code: | 081 |
Sant'Arpino is a comune (municipality) in the Province of Caserta in the Italian region Campania located about 11km (07miles) northwest of Naples and about 12km (07miles) southwest of Caserta.
Sant'Arpino borders the following municipalities: Cesa, Frattamaggiore, Frattaminore, Grumo Nevano, Orta di Atella, Sant'Antimo, Succivo.
Sant'Arpino is the vulgarized version of Sant'Elpidio, bishop and patron of the town. The ancient city of Atella was located nearby.