School Aycliffe is a village located in County Durham, England. It is situated a short distance to the west of Newton Aycliffe and to the east of Heighington, County Durham. The name derives from a Viking called Scula who owned land in the southern part of Durham.
School Aycliffe is split into two by the road named School Aycliffe Lane. One side has the older, original estate. This is part of the County Durham unitary area, formerly the Borough of Sedgefield. The other side is now a new housing estate named 'The Chestnuts', and part of Borough of Darlington. The now closed Aycliffe Hospital, a mental health institute, was located here.