| Type: | parish |
| Official Name: | Santa Margarida da Serra |
| Region: | Alentejo |
| Cim: | Alentejo Litoral |
| District: | Setúbal |
| Municipality: | Grândola |
| Coordinates: | 38.123°N -8.602°W |
| Area Total: | 13.6 |
| Population Total: | 243 |
| Population As Of: | 2001 |
| Dissolved: | 2013 |
Santa Margarida da Serra is a former civil parish in the municipality of Grândola, Portugal. In 2013, the parish merged into the new parish Grândola e Santa Margarida da Serra.[1] It covers an area of 52.38 km2 and had a population of 243 as of 2001.