Astridge Wood (grid reference SO547088) is a 19.42-hectare (48.0-acre) biological Site of Special Scientific Interest in Gloucestershire, England, notified in 1985. The site is listed in the 'Forest of Dean Local Plan Review' as a Key Wildlife Site (KWS). The site is in the Wye Valley Area of Outstanding Natural Beauty. It is to the east (see map) of Highbury Wood National Nature Reserve (NNR). Wye Valley Woodlands/ Coetiroedd Dyffryn Gwy are recognised as a Special Area of Conservation (SAC) under the EU Habitats Directive.