St Mary's Hospital was a mental health facility near Stannington, Northumberland, England.

The facility was designed by George Thomas Hine in an echelon formation.

[2] Construction started in 1910 and it opened as the Gateshead Borough Lunatic Asylum in 1914.

[3] Part of the hospital was also requisitioned for military use during the Second World War.

[5] However, some buildings remain in varying forms, including 34 former staff houses known locally as The Villas,[6] as well as the former gate-keeping lodge, Chief Medical Superintendent's Home and the Administration block, now known as St Mary's Inn.