St Francis Hospital was a mental health facility in Haywards Heath, West Sussex, England.

[1] The hospital, which was designed by Henry Edward Kendall Jr. in the Italianate style using a corridor plan layout, opened as the Sussex County Asylum in July 1859.

[2] It became the Brighton County Borough Asylum in 1903 and the Brighton County Borough Mental Hospital in 1919 before joining the National Health Service as St Francis Hospital in 1948.

[3] After the introduction of Care in the Community in the early 1980s, the hospital went into a period of decline and part of the site was made available to facilitate the construction of the Princess Royal Hospital in the late 1980s.

[2] The site was subsequently developed for residential use as Southdowns Park.