Andrew Gibb Maitland (30 November 1864 – 27 January 1951) was an English-born Australian geologist.
Maitland reported to Robert Logan Jack who assigned him to survey the land in the Mackay region.
In 1891 he was seconded by Sir William MacGregor on the geological examination of British New Guinea.
He died in Subiaco, Western Australia and was buried in the Anglican section of Karrakatta Cemetery.
Gibb Maitland's contributions to the study of geology in Western Australia is commemorated by the Gibb Maitland Medal, usually awarded annually by the Western Australian Division of the Geological Society of Australia for substantial contributions to geoscience in Western Australia, with particular consideration given to contributions that relate to the occurrence or discovery of mineral resources.