Recherche Bay (locally /ˈri.sərtʃ/ REE-sərtch) is an oceanic embayment, part of which is listed on the National Heritage Register,[1] located on the extreme south-eastern corner of Tasmania, Australia.

At this observatory, geoscientist Elisabeth Paul Edouard de Rossel conducted a series of measurements that proved geomagnetism varied with latitude.

With each step, one encounters the beauties of unspoilt nature, with signs of decrepitude, trees reaching a very great height, and of corresponding diameter, are devoid of branches along the trunk, but crowned with an everlasting green foliage.

In January 2006 the Tasmanian Land Conservancy (TLC) announced plans to raise a minimum of A$1.3 million to purchase the site from its private owners.

[9] Part of the bay, being the north east peninsula area comprising 430 hectares (1,100 acres), was included in the National Heritage List on 7 October 2005.