Great Canfield Castle was in the small village of Great Canfield 5 km south-west of Great Dunmow in Essex (). The lords of Canfield, the de Veres, built a motte and bailey castle was built on low ground near the River Roding, probably in the late 11th or early 12th century. The keep was constructed of timber. In the 1130s-1140s Aubrey de Vere II or his son Aubrey III the first Earl of Oxford may have diverted a tributary of the river to flood the ditch around the motte; the water was managed by a dam system. Excavations suggest that the moat was 20' 7" deep, 11' lower than the water table.