Craiglockhart is located in Edinburgh, Scotland. Originally private and family-owned, the estate was sold in 1773 to one Alexander Munro , Professor of Anatomy at the University of Edinburgh. It stayed in the Munro family for more than a hundred years. In 1877, the estate became the property of the Craiglockhart Hydropathic Company, who (as one can infer from their name) set about building a hydropathic institute. Such was Craiglockhart's function until the advent of the First World War. Between 1916 and 1919 the building was used as a military psychiatric hospital for the treatment of shell-shocked officers.

Probably the most famous inmates of Craiglockhart were the poets, Siegfried Sassoon and Wilfred Owen. The best known of the doctors assigned there was W. H. R. Rivers.

It is now a part of Napier University; much of the old building has been retained, but an extensive new wing has been built behind it to house the Business School.

Many of the younger residents of the area refer to the hospital as "Mongo Hill" under the mistaken belief that it is in use as an asylum; a mental institution was cited nearby, at Craighouse, but is now also part of Napier University.