George Dutton Green (1 May 1850 – 27 April 1911) was a land agent, auctioneer and politician in the colony of South Australia. He was generally referred to as "Dutton Green" and adopted it as his family name, occasionally hyphenated. Green was a director of many notable companies: the South Australian Gas Company, the South Australian Brewing Company, John Hill & Co., the , and the Glenelg Railway Company. He was a vice-president of the Park Lands League, a trustee of the Wyatt Benevolent Institution, and patron of racing clubs and athletics bodies.