Askham Bog

Askham Bog
Site of Special Scientific Interest
LocationNorth Yorkshire
Grid referenceSE 575 481
Area110.7 acres (44.8 ha)
Notification1961
Location mapNatural England

Askham Bog is small area of peat bog and Site of Special Scientific Interest situated within the Vale of York in North Yorkshire, England. It lies to the south-west of York, north of Copmanthorpe and near Askham Richard and Askham Bryan. It is regarded as one of the most ecologically diverse sites in Northern England.

During the 2010s, a development of 500 houses was proposed for the edge of the bog on the outskirts of York city, but this was overturned in 2020.