The Mermaid Reef Marine Park (previously known as the Mermaid Reef Marine National Nature Reserve) is an Australian marine park in the Rowley Shoals, located approximately north-west of Broome, Western Australia. The marine park covers an area of and is assigned IUCN category II. It is one of 13 parks managed under the North-west Marine Parks Network, and lies adjacent to the Argo-Rowley Terrace Marine Park
The Marine Park was originally proclaimed on 10 April 1991 as the Mermaid Reef Marine National Nature Reserve. It was proclaimed as a Commonwealth Marine Reserve in 2013 and later renamed Mermaid Reef Marine Park on 9 October 2017.
The Mermaid Reef Marine park has been assigned IUCN protected area category II and is wholly zoned as a National Park.
The following table is a summary of the zoning rules within the Mermaid Reef Marine Park: