Chatswood Reservoirs No. 1 and No. 2 are two heritage-listed reservoirs located at 559 Pacific Highway in the Sydney suburb of Artarmon in the City of Willoughby local government area of New South Wales, Australia. They were designed and built by the NSW Public Works Department. They are also known as WS024 & WS025 respectively. The reservoirs are owned by Sydney Water, a State-owned statutory corporation of the Government of New South Wales. The reservoirs were added to the New South Wales State Heritage Register on 18 November 1999.