| Santa Giusta | |
| Official Name: | Comune di Santa Giusta |
| Native Name: | Santa Justa |
| Pushpin Map: | Italy Sardinia |
| Coordinates: | 39.8833°N 45°W |
| Region: | Sardinia |
| Province: | Oristano (OR) |
| Frazioni: | Cirras, Corte Baccas |
| Mayor: | Antonello Figus |
| Area Total Km2: | 69.2 |
| Population Footnotes: | [1] |
| Population Total: | 4875 |
| Population As Of: | 30 November 2014 |
| Population Demonym: | Santagiustesi Santajustesus |
| Saint: | Santa Giusta |
| Postal Code: | 09096 |
| Area Code: | 0783 |
Santa Giusta (pronounced as /it/; Sardinian: Santa Justa) is a comune (municipality) in the Province of Oristano in the Italian region of Sardinia, located about 90km (60miles) northwest of Cagliari and about 3km (02miles) southeast of Oristano in the Campidano area.
The site of the Phoenician port town of Othoca is thought to be at the bottom of a lake separated from the Mediterranean by a small isthmus, and modern Santa Giusta occupies some ancient sites. Previous excavations recovered 50 amphorae and the first chamber tomb of Phoenician origin found in Italy. Archaeologists led by Carlo del Vais of the University of Cagliari plan to excavate a portion of the lake where 100 amphorae appear to be located on a wooden platform covered by a thick mud layer.[2]