Great Cobar mine was a copper mine, located at Cobar, New South Wales, Australia, which also produced significant amounts of gold and silver. It operated between 1871 and 1919. Over that period, it was operated by five entities; Cobar Copper Mining Company (1871–1875), Great Cobar Copper-Mining Company (1876–1889), Great Cobar Mining Syndicate (1894–1906), Great Cobar Limited (1906–1914), and finally the receiver representing the debentures holders of Great Cobar Limited (1915–1919). Its operations included mines and smelters, at Cobar, an electrolytic copper refinery, coal mine and coke works, at Lithgow, and a coal mine and coke works at Rix's Creek near Singleton.