| Country: | England |
| Static Image: | Primrose_Hill_Post_Office._-_geograph.org.uk_-_289728.jpg |
| Static Image Caption: | Primrose Hill Post Office |
| Coordinates: | 51.73°N -2.53°W |
| Official Name: | Allaston |
| Civil Parish: | Lydney |
| Shire District: | Forest of Dean |
| Shire County: | Gloucestershire |
| Region: | South West England |
| Os Grid Reference: | SO6304 |
Allaston is a village in Gloucestershire, England, now forming part of the town of Lydney.
Allaston was mentioned in the Domesday Book, when it was part of Bledisloe Hundred.