Vaucluse House is a historic estate in Gothic Revival style in the harbourside suburb of Vaucluse in Sydney, New South Wales, Australia. The suburb takes its name from this house. Vaucluse House is a 19th-century estate with house, kitchen wing, stables and outbuildings, surrounded by 28 acres (9 hectares) of formal gardens and grounds. It is managed by the Historic Houses Trust of New South Wales as a museum that is open to the public.