Lake Parramatta is the name of both the body of water that is the dammed Hunt Creek, and the nature reserve that surrounds it, in City of Parramatta, Western Sydney, New South Wales, Australia. The catchment area for the Lake is bounded by North Rocks Rd, Pennant Hills Rd and Hunt's Creek. Entry to the reserve is from Lackey Street, North Parramatta. The reserve is a popular recreational site.
The dam wall is 15 metres high and has created a lake holding 485,000 cubic metres of water, approximately equivalent to 9,700 backyard swimming pools, with a surface area of approximately 10 hectares.