Callan Park is a former psychiatric hospital at Rozelle on Iron Cove, proclaimed Callan Park Hospital for the Insane on 1 August 1878 and closed on 30 April 2008. Its Kirkbride Complex, built from 1880 to 1885 by Colonial Architect James Barnet with Inspector General of the Insane Frederic Norton Manning and Botanic Gardens director Charles Moore, was the first hospital in Australia designed on moral therapy principles: 10 sandstone ward blocks, 5 male and 5 female, linked by a continuous covered veranda in 61 hectares of parkland.
Manning toured asylums in England, France, Germany and the United States in 1876 and brought back drawings of Chartham Down Hospital in Kent, the model for Callan Park, altered for the New South Wales climate with extensive verandahs. The buildings were meant to treat: pavilions of two storeys, rising to three at their ends, set around landscaped courtyards and airing courts, some with views to the Blue Mountains, in grounds planned as a therapy space for patients. The first ward opened on 1 July 1884 with about 50 male patients.
Designed for about 600 patients, the hospital held 1,500 by 1930. Inquiries into overcrowding followed in 1923 and 1948, the Stoller Report in 1955 and a Royal Commission in 1961. In 1905 Callan Park opened special admission wards for curable cases, the forerunner in New South Wales of voluntary treatment without committal, and on 1 September 1976 it was amalgamated with the neighbouring Broughton Hall Psychiatric Clinic as Rozelle Hospital.
Psychiatric care in the Kirkbride Block was phased out after 1991, and Sydney College of the Arts then occupied the complex under a 99-year lease, moving to the University of Sydney's Camperdown campus in 2020. The hospital closed on 30 April 2008. Callan Park Conservation Area and Buildings was gazetted on the NSW State Heritage Register on 2 April 1999, the Callan Park (Special Provisions) Act 2002 protects the site's open space in perpetuity, and since December 2020 about 38 of its 61 hectares have been vested in the Greater Sydney Parklands Trust as public parkland.