Newcastle Reservoirs are heritage-listed former and disused reservoirs, now used for public tours, at 51 Brown Street, The Hill, City of Newcastle, New South Wales, Australia. They were designed by Cecil West Darley and the NSW Public Works Department and built from 1880 to 1918 by the Public Works Department. It is also known as Newcastle Reservoirs Site, Brown Street Reservoirs, Newcastle Reservoir No.1, Newcastle Pumping Station and Reservoir No.2 Valve House. The property is owned by the Hunter Water Corporation, an agency of the Government of New South Wales. The reservoirs were added to the New South Wales State Heritage Register on 27 April 2018.