The Barrenjoey Head Lighthouse is a heritage-listed lighthouse at Barrenjoey Headland in the Sydney suburb of Palm Beach, New South Wales, Australia. It was designed by James Barnet, the New South Wales Colonial Architect and built by Isaac Banks. It is also known as Barrenjoey Head Lightstation. The property is owned by Office of Environment and Heritage, an agency of the Government of New South Wales. The lightstation was added to the New South Wales State Heritage Register on 2 April 1999.