| Terralba | |
| Official Name: | Comune di Terralba |
| Native Name: | Terraba |
| Pushpin Map: | Italy Sardinia |
| Coordinates: | 39.7167°N 46°W |
| Region: | Sardinia |
| Province: | Oristano (OR) |
| Frazioni: | Marceddì e Tanca Marchese |
| Mayor: | Sandro Pili |
| Area Total Km2: | 49.8 |
| Population Footnotes: | [1] |
| Population Total: | 10201 |
| Population As Of: | 30 November 2017 |
| Population Demonym: | Terralbesi |
| Elevation M: | 9 |
| Postal Code: | 09098 |
| Area Code: | 0783 |
Terralba (Sardinian: Terraba) is a comune (municipality) and former Latin Catholic bishopric in the Province of Oristano in the Italian island region Sardinia, located about 70km (40miles) northwest of Cagliari and about 20km (10miles) south of Oristano.
Terralba borders the following municipalities: Arborea, Arbus, Guspini, Marrubiu, San Nicolò d'Arcidano and Uras.