Gladstone, city, eastern Queensland, eastern Australia, on Port Curtis, an inlet of the Coral Sea.
Originally settled in 1847 as a colony by the New South Wales government, it was abandoned in 1848 but was resettled by squatters in 1853. It was named for the British chancellor of the Exchequer (later prime minister) William Ewart Gladstone and became a municipality in 1863. A tourist centre for the Great Barrier Reef, it is located in a cattle and dairy region. Its fine natural harbour, with anchorages of up to 70 feet (20 metres), was a mustering place for convoys during World War II. Rapid postwar development was based on the export of coal to Japan (from the Kiang-Moura field), aluminum (reduced from bauxite deposits at Weipa), sulfuric acid, and meat products. Pop. (2006) urban centre, 28,808; (2011) urban centre, 32,073.