| Marzano Appio | |
| Official Name: | Comune di Marzano Appio |
| Coordinates: | 41.3°N 16°W |
| Region: | Campania |
| Province: | Caserta (CE) |
| Mayor: | Unknown |
| Area Total Km2: | 28.2 |
| Population Footnotes: | [1] |
| Population Total: | 2212 |
| Population As Of: | 30 September 2017 |
| Population Demonym: | Marzanesi |
| Elevation M: | 318 |
| Saint: | St. Anthony of Padua |
| Day: | 24 Luglio |
| Postal Code: | 81048 |
| Area Code: | 0823 |
Marzano Appio is a comune (municipality) in the Province of Caserta in the Italian region Campania, located about 50km (30miles) northwest of Naples and about 35km (22miles) northwest of Caserta.
Marzano Appio borders the following municipalities: Caianello, Conca della Campania, Presenzano, Roccamonfina, Tora e Piccilli, Vairano Patenora.