| Tertenia | |
| Official Name: | Comune di Tertenia |
| Native Name: | Dardania |
| Pushpin Map: | Italy Sardinia |
| Coordinates: | 39.7°N 44°W |
| Region: | Sardinia |
| Province: | Province of Nuoro (NU) |
| Mayor: | Giulio Murgia |
| Area Total Km2: | 117.77 |
| Population Footnotes: | [1] |
| Population Total: | 3888 |
| Population As Of: | 31 December 2015 |
| Population Demonym: | Terteniesi |
| Elevation M: | 129 |
| Saint: | St. Sophia |
| Day: | September 1 |
| Postal Code: | 08047 |
| Area Code: | 0782 |
Tertenia is a comune (municipality) in the Province of Nuoro in the Italian region Sardinia, located about 70km (40miles) northeast of Cagliari and about 25km (16miles) south of Tortolì.
Tertenia borders the following municipalities: Cardedu, Gairo, Jerzu, Lanusei, Loceri, Osini, Ulassai.
It is located in a high valley at the base of Mt. Arbu and Mt. Ferru, along the Rio Quirra river.[2]