Franklin Commonwealth Marine Reserve is a 671 km2 marine protected area within Australian waters located off the west coast of north-west Tasmania.

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

The area incorporates two major bioregions: western Bass Strait and the Tasmanian shelf.

To the north of the reserve is Black Pyramid Rock, which supports the largest breeding colony of the Australasian gannet in Tasmania.

[3] The entirety of the Franklin marine reserve area is IUCN protected area category VI and zoned as 'Multiple Use'.