Lord Howe Island Marine Park (Commonwealth waters) is a former marine protected area managed by the Commonwealth Department of the Environment, protecting the waters surrounding Lord Howe Island. It was adjacent to the 465.45 km<sup>2</sup> Lord Howe Island Marine Park managed by the Marine Parks Authority New South Wales. On 8 November 2012, it was replaced by a new protected area known as the Lord Howe Commonwealth Marine Reserve.