The Division of Bonython was an Australian Electoral Division in South Australia between 1955 and 2004. The division was named for Hon Sir John Langdon Bonython KCMG, who was an Australian editor, newspaper proprietor, philanthropist, journalist and politician who served as a member of the inaugural federal Parliament. Bonython was abolished in 2004, after a redistribution triggered by a change in representation entitlement which saw South Australia's seats in the House of Representatives reduced to eleven.