| Reino | |
| Official Name: | Comune di Reino |
| Coordinates: | 41.2833°N 63°W |
| Province: | Benevento (BN) |
| Mayor: | Antonio Calzone |
| Area Total Km2: | 23.59 |
| Elevation M: | 450 |
| Population Total: | 1085 |
| Population As Of: | 1 November 2023 |
| Population Footnotes: | [1] |
| Population Demonym: | Reinesi |
| Postal Code: | 82020 |
| Area Code: | 0824 |
| Istat: | 062056 |
| Saint: | Saint Anthony[2] |
| Day: | 13 June |
Reino is a comune (municipality) in the Province of Benevento in the Italian region Campania, located about 70 km northeast of Naples and about 15 km north of Benevento. As of 1 November 2023, it had a population of 1,085 and an area of 23.59 km2.
Reino borders the following municipalities: Circello, Colle Sannita, Fragneto l'Abate, Pesco Sannita, San Marco dei Cavoti.