Andrew Keith Jack
Aneroid Barometer used by Keith Jack during Antarctic expedition
Born	(1885-09-09)9 September 1885 Melbourne, Australia
Died	26 September 1966(1966-09-26) (aged 81)
Education	University of Melbourne
Occupation	Physicist

Andrew Keith Jack (9 September 1885 – 26 September 1966) was an Australian physicist who served as a member of the Ross Sea Party as part of Ernest Shackleton's Imperial Trans-Antarctic Expedition.

Jack was educated at the University of Melbourne, graduating with an MSc in 1914. A year later he joined the Shackleton expedition, where along with other members of the crew, he became stranded for 2 years in Antarctica after the loss of the ship Aurora. During this time he kept a regular diary across five volumes.^[1] Jack was rescued along with six other survivors in 1917. Jack also took many photographs during the expedition, some of which were later hand-coloured as lantern slides.^[2] Jack's diaries, as well as a number of his artefacts from the expedition, including his 1829 Aneroid barometer and a set of two thermometers, were bequeathed to the Museum Victoria.^[3][4]

After the expedition, Jack worked during the war in an explosives factory (known as the Cordite Factory), utilising his expertise in chemistry, eventually become a Senior Assistant Manager.^[5] After the war he took on various roles managing explosives and safety for the Australian Government.