Born Apr. 14, 1812, In Lisbon; died Sept. 19, 1898, in London. British officer and explorer of Australia.
Grey explored the northwestern coast of Australia (Collier Bay region) in 1837–38 and the western coast in 1838–39, where at 25° S lat., traveling northward by sea from the city of Perth, he discovered the Gascoyne River. On the way back, suffering a shipwreck in the vicinity of Geelvink Channel, he discovered to the north of the channel the mouth of the Murchison River (27° 30’ S lat.) and for the first time journeyed by land down the coast to Perth.