Herrison Hospital was a mental health facility in Charlton Down, Dorset.

The hospital, which was designed by Henry Edward Kendall Jr. using a Corridor Plan layout, opened as the Dorset County Asylum in 1863.

[1] A female annex, designed by George Thomas Hine, was added in 1896 and a private asylum for fee paying patients, known as Herrison House and also designed by Hine, was added in 1904.

[2] After the introduction of Care in the Community in the early 1980s, the hospital went into a period of decline and closed in January 1992.

[1] The site was subsequently developed for residential use as Charlton Down.