Alexander Pearce (1790 – 19 July 1824) was an Irish convict who was transported to Van Diemen's Land for seven years for theft. He escaped from prison several times. During one of these escapes he allegedly became a cannibal, murdering his companions one by one. In another escape, with one companion, he allegedly killed him and ate him in pieces. He was eventually captured and was hanged and dissected in Hobart for murder.
Pearce was born in County Monaghan, Ireland. A Roman Catholic farm labourer, he was sentenced at Armagh in 1819 to penal transportation to Van Diemen's Land for "the theft of six pairs of shoes". He committed various offences in Van Diemen's Land, and on 18 May 1822 was advertised in the Hobart Town Gazette as an absconder, with a £10 reward for his capture. When caught, he was charged with absconding and forging an order, a serious crime. For this he received a second sentence of transportation, this time to the new secondary penal establishment at Sarah Island in Macquarie Harbour.
On September 20, 1822, Pearce along with seven other convicts of Macquarie Harbour Penal Station: Alexander Dalton, Thomas Bodenham, William Kennerly, Matthew Travers, Edward Brown, Robert Greenhill and John Mather escaped while working on the eastern side of the harbour. Greenhill, who had the axe, appointed himself leader, supported by his friend Travers, with whom he had been sent to Macquarie Harbour for stealing businessman Anthony Fenn Kemp's schooner in an attempt to escape. About 15 days into the journey, the men were starving and drew lots to see who would be killed for food. Thomas Bodenham (or perhaps Alexander Dalton: see below) drew the short straw and Greenhill despatched him with an axe. At this point three of the company — Dalton, Kennerly and Brown — took fright and decamped. Kennerly and Brown reached Macquarie Harbour, but Dalton seemed to have died of exhaustion. That left Greenhill, Travers, John Mather and Alexander Pearce. With Greenhill and Travers acting as a team, it would be Mather's or Pearce's turn next. Pearce seems to have sided with Greenhill and Travers at this point, and Mather was the next victim. It was then that Pearce had some luck: Travers was bitten on the foot by a snake. Greenhill insisted they carry him for five days, but when it became clear he would not recover, killed him.