Ullerwood Castle is an early medieval castle, possibly a shell keep, in Ringway, Manchester, England (grid reference SJ800838).[1][2] The castle is first referred to in 1173, in a document stating Hamon de Masci held the castles of Ullerwood and Dunham.[3] There is no other contemporary documented reference to the castle.[3] Ullerwood Castle has been confused with Watch Hill Castle in nearby Bowdon, but the two are separate castles, though both probably owned by de Masci.[3] The site is underneath a house and surrounded by trees.[4] ° It is possible that the site of the castle is at the top of Castle Hill at 53°20'57"N, 2°17'32"W. Examination of aerial views of the location on Google Earth[5] indicates a circular structure with less well defined adjacent structures to the South East. The site is very close to a runway at Manchester Airport and lies within a restricted area.