| Official Name: | Firsdown |
| Static Image Name: | The A30, Firsdown - geograph.org.uk - 517477.jpg |
| Static Image Caption: | The A30, Firsdown parish |
| Coordinates: | 51.099°N -1.699°W |
| Os Grid Reference: | SU212333 |
| Label Position: | top |
| Population: | 581 |
| Population Ref: | (in 2011)[1] |
| Civil Parish: | Firsdown |
| Unitary England: | Wiltshire |
| Region: | South West England |
| Country: | England |
| Post Town: | Salisbury |
| Postcode District: | SP5 |
| Postcode Area: | SP |
| Dial Code: | 01980 |
| Constituency Westminster: | Salisbury |
Firsdown is a civil parish in Wiltshire, England, 5miles northeast of Salisbury.
Before the 1950s the area was sparsely populated downland within the parish of Winterbourne. By 1976 housing estates had been built on both sides of Firs Road, which links Winterslow with the A30. The civil parish of Firsdown was created in 1986.[2]
The parish includes the Figsbury Ring, a biological Site of Special Scientific Interest which contains prehistoric earthworks.