Lake Parramatta is a heritage-listed man-made reservoir and a recreational area located in North Parramatta, City of Parramatta, in the Western Sydney region of New South Wales, Australia. The masonry arch-walled dam across Hunts Creek was completed in 1856 to supply water for domestic purposes; and was operational until 1909. The dam has since been decommissioned and the lake and the surrounding nature reserve are a popular recreational area.

North Parramatta is a suburb on the North Shore of Sydney, in the state of New South Wales, Australia. North Parramatta is 24 kilometres north-west of the Sydney central business district in the local government area of the City of Parramatta.