| Las Plassas | |
| Official Name: | Comune di Las Plassas |
| Native Name: | Is Pratzas |
| Pushpin Map: | Italy Sardinia |
| Coordinates: | 39.6833°N 67°W |
| Region: | Sardinia |
| Province: | South Sardinia |
| Mayor: | Ernesto Nocco |
| Area Total Km2: | 11.04 |
| Population Footnotes: | [1] |
| Population Total: | 233 |
| Population As Of: | 31 August 2017 |
| Population Demonym: | Lasplassesi |
| Elevation M: | 148 |
| Postal Code: | 09020 |
| Area Code: | 070 |
Las Plassas, Is Pratzas or Is Platzas in the Sardinian language, is a comune (municipality) in the Province of South Sardinia in the Italian region Sardinia, located about 50km (30miles) north of Cagliari and about 15km (09miles) northeast of Sanluri.
Las Plassas borders the following municipalities: Barumini, Pauli Arbarei, Tuili, Villamar, Villanovafranca.