SS Barcoo was a 1,505 gross ton passenger ship built by William Denny & Brothers, Dumbarton in 1885 for the Queensland Steam Shipping Company. She was transferred upon merger of parent company to the Australasian United Steam Navigation Company in 1857. She was hulked in 1911 and requistioned by the Royal Australian Navy in 1914 and utilised as a coal hulk in Sydney Harbour.