Zeehan Commonwealth Marine Reserve is a 19,897 km<sup>2</sup> marine protected area within Australian waters located west of Tasmania and extending to near King Island. The reserve was established in 2007 and is part of the South-east Commonwealth Marine Reserve Network.
The reserve includes a variety of seabed habitats, including exposed limestone, that provides important habitat for a variety of commercial fish species as well as giant crab. There is a broad depth range, from the shallow continental shelf of about to the abyssal plain with depths of over .
The entire Murray marine reserve area is IUCN protected area category VI and has two zones; 'Special Purpose' and 'Multiple Use'.