| Santena | |
| Official Name: | Comune di Santena |
| Coordinates: | 44.95°N 54°W |
| Region: | Piedmont |
| Metropolitan City: | Turin (TO) |
| Frazioni: | Alberassa, Carolina, Case Nuove, Gamenario, Luserna, San Salvà, Tetti Agostino, Tetti Busso, Tetti Giro |
| Mayor: | Roberto Ghio |
| Area Total Km2: | 16.20 |
| Population Footnotes: | [1] |
| Population Total: | 10480 |
| Population As Of: | 1 January 2024 |
| Population Demonym: | Santenese(i) |
| Elevation M: | 237 |
| Saint: | Saint Lawrence |
| Day: | 10 August |
| Postal Code: | 10026 |
| Area Code: | 011 |
Santena (pronounced as /it/; pms|Santna) is a Italian: [[comune]] (municipality) in the Metropolitan City of Turin in the Italian region Piedmont, located about 15km (09miles) southeast of Turin on the right bank of the Po.
The Italian: [[frazione]] of Gamenario is known for the Battle of Gamenario, fought on 22 April 1345 between the Guelphs and Ghibellines. Sights include the castle, built by Carlo Ottavio Benso in 1712 - 20. It houses furnitures and memories of the families who lived there, including a vase donated by Napoleon III of France to Camillo Benso, Conte di Cavour in 1856. Nearby is a 23ha English landscape garden built under Cavour's father, Michele Giuseppe Francesco Antonio Benso, 4th Marquess of Cavour (1781-1850), in the early 18th century.
Santena borders the following municipalities: Chieri, Cambiano, Trofarello, Poirino, and Villastellone.
Since 2015, Santena is joined as a twin city with the following cities: