| Type: | parish |
| Official Name: | Ermidas-Sado |
| Region: | Alentejo |
| Cim: | Alentejo Litoral |
| District: | Setúbal |
| Municipality: | Santiago do Cacém |
| Coordinates: | 38.01°N -8.41°W |
| Area Total: | 82.40 |
| Population As Of: | 2011 |
| Population Total: | 2020 |
Ermidas-Sado is a civil parish in the municipality of Santiago do Cacém, Portugal. The population in 2011 was 2,020,[1] in an area of 82.40 km2.[2]