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