Andrew Agnew Stuart Menteath (1853–1916) was a 19th-century Member of Parliament from Westland, New Zealand. He represented the Inangahua electorate from 1884 to 1887; and then the Te Aro electorate in Wellington from 1887 to 1890, when he retired. He was reported to have died in Wellington on 25 September 1916. He was a native of Edinburgh, but educated on the Continent and fluent in French. He was a barrister.