South Tasman Rise Commonwealth Marine Reserve is a 27,704 km2 marine protected area located at the southerly limit of Australia's exclusive economic zone near Tasmania.

The reserve was established in 2007[2] and is part of the South-east Commonwealth Marine Reserve Network.

The reserve contains part of the South Tasman Rise seafloor and covers the deep ocean, including a section of the mid-continental slope at depths of 1,200–3,000 m (3,900–9,800 ft).

Some of the seamounts within the reserve have flat summits, which indicates that they were exposed above the surface at some time.

[3] The entirety of the South Tasman Rise marine reserve area is IUCN protected area category VI and is zoned as 'Special Purpose'.