Sir Ernest Scott (21 June 1867 – 6 December 1939) was an Australian historian, professor of history at the University of Melbourne from 1913.
Scott was born in Northampton, England son of Hannah Scott, housekeeper; William Scott, civil engineer, was cited as his father when Ernest married. Ernest Scott was educated at St Katherine's Church of England School, Northampton and worked as a journalist on the London Globe. On 7 May 1892 Scott married Mabel Emily Besant, daughter of Rev. Frank and Annie Besant, the theosophist; they had one child, Muriel (1893–1924).
In 1892 Scott (who began to call himself Besant-Scott at his wife's insistence) migrated to Australia in 1892, where he joined the staff of The Herald newspaper, edited the Austral Theosophist and lectured. Around 1896 Mabel converted to Roman Catholicism and became estranged from her husband, although they continued nominal cohabitation. Scott subsequently abandoned theosophy. Mabel returned to England in 1909, taking their daughter Muriel, but Scott did not sue for divorce until 1915. On 25 May in Melbourne, Scott married to Bendigo-born Emily Illinden Fortuna, sister of Edward Dyason. They had no children.
From 1895 to 1901 Scott was a member of the Victorian Hansard staff, and from 1901 to 1914 was on the Commonwealth Hansard staff.
After the publication of Terre Napoléon: A History of French Explorations and Projects in Australia (London, 1910), Laperouse (Sydney, 1912) and (Sydney, 1914), Scott's reputation as a historian was established.
In 1913 Scott was appointed Professor of History at the University of Melbourne, even though Scott had never attended a university. He had, however, shown ability both in research and as a lecturer, and the experiment proved a great success. Future professors of history who passed through Scott's school included (Sir) Keith Hancock, Fred Alexander, (Sir) Stephen Henry Roberts, Manning Clark, N. D. Harper and A. G. B. Fisher of Christchurch.