Colonel William Thomas Reay CBE VD (10 November 1858 – 11 November 1929) was an Australian journalist, newspaper editor and politician, as well as a police and army officer.
The son of an English sailmaker, Edward William Raey and his Irish wife, Johanna Brennen, Reay was born in Balmain, Sydney, but grew up in Williamstown, Melbourne. He ran away to sea when he was thirteen, but left his ship at Dunedin, New Zealand, and worked as a clerk for a while before working his way home. He then attended King's College, Melbourne and joined the Victoria Sugar Company at Yarraville, where he worked for nine years.
In June 1883 he bought the Coleraine Albion, followed by the Port Melbourne Standard. From 1887 to 1890 he was editor of the Hamilton Spectator, and from 1891 he was leader-writer and assistant editor of the Melbourne Daily Telegraph. When it closed in 1892 he moved to the Melbourne Weekly Times and then to The Herald as literary editor and later associate editor.
In 1886, he obtained a commission in the Victorian Mounted Rifles and commanded a detachment of them at the Queen's diamond jubilee in London in 1897. In October 1899 he accompanied the first Australian contingent to the South African War, serving under Lieutenant-General Rundle in the area of the Orange River, and was awarded the South African Medal at Jasfontein after visiting the grave of a fellow Australian correspondent William Lambie in Boer-held territory. Reay also wrote articles as a war correspondent for The Herald and the South Australian Register until he returned ill after the capture of Bloemfontein. From Australia he published Australians in War (1900), which was widely distributed to Victorian soldiers. He retired from the Mounted Rifles in 1903 with the rank of Lieutenant-Colonel, although, perhaps with an eye towards the likelihood of further hostilities, he wrote a report on the training of volunteers based on the Swiss system.