David Dominic Walsh AO (born 1961[1]) is an Australian professional gambler, art collector and businessman.
[2] Walsh grew up in a Roman Catholic family in the Glenorchy district of Hobart, Tasmania, Australia, the youngest of three children.
[3] Walsh made his fortune by developing a gambling system used to bet on horse racing and other sports.
[5] In 2001, he founded the Moorilla Museum of Antiquities on the Berriedale peninsula in Hobart, which closed in 2007 to undergo $75 million renovations.
[7] In July 2012, Walsh was involved in a dispute with the Australian Tax Office, which demanded he pay $37 million from the profits of his gambling system.