Hugh Mahon (6 January 1857 – 28 August 1931) was an Irish-born Australian politician and a member of the first Commonwealth Parliament for the Australian Labor Party. He was the only Member of Parliament ever expelled from the Federal Parliament.Mahon was born at Killurin, near Tullamore, King's County, Ireland and migrated with his family to the United States in 1867, where he learnt about printing.