Thomas (or Tom) Buchanan is the name of: Thomas Buchanan (moderator) (died 1599) Moderator of the General Assembly of the Church of Scotland in 1588 Thomas Buchanan (Liberal politician) (1846–1911), Scottish Liberal politician, Under-Secretary of State for India Thomas Buchanan (Unionist politician) (born 1963), Northern Ireland politician Thomas Buchanan (Governor of Liberia) (1808–1841), first governor of Liberia and cousin of James Buchanan, president of the United States Thomas Buchanan (priest) (1833–1924), Archdeacon of Wilts from 1874 until 1911 Thomas C. Buchanan, Chairman of the Federal Power Commission from 1952-53 Thomas Buchanan Read (1822–1872), American poet and painter Tom Buchanan (historian) (born 1960), British historian Tom Buchanan, a fictional character in The Great Gatsby Tom Buchanan, a contestant on Survivor (American TV series)