John Trenchard (1662 – 17 December 1723) was an English writer and Commonwealthman.
Trenchard belonged to the same Dorset family as the Secretary of State Sir John Trenchard. He was educated at Trinity College, Dublin, and became a lawyer. From 1722 until his death Trenchard was also a member of Parliament for Taunton. He died on 17 December 1723.
As he inherited considerable wealth, Trenchard was able to devote the greater part of his life to writing on political subjects, his approach being that of a Whig and an opponent of the High Church party. With Walter Moyle he wrote An Argument, Shewing that a Standing Army is Inconsistent with a Free Government (1697) and A Short History of Standing Armies in England (1698 and 1731). He developed anticlerical lines of argument in The Natural History of Superstition (1709), and The Independent Whig, a weekly periodical published in 1720–21 with Thomas Gordon. From 1720 to 1723, Trenchard, again with Thomas Gordon, wrote a series of 144 weekly essays entitled Cato's Letters, condemning corruption and lack of morality within the British political system and warning against tyranny. The essays were published as Essays on Liberty, Civil and Religious, first in the London Journal and then in the British Journal. These essays became a cornerstone of the Commonwealthmen tradition.
- The Cambridge History of Eighteenth-Century Political Thought, ed. Mark Goldie & Robert Wokler, Cambridge University Press, 2006, p. 780
- Jonathan Harris, 'The Grecian coffee house and political debate in London, 1688–1714', The London Journal 25 (2000), 1–13
- Margaret C. Jacob, The Radical Enlightenment: Pantheists, Freemasons and Republicans (London, 1981)
- Caroline Robbins, The Eighteenth Century Commonwealthman. Studies in the Transmission, Development and Circumstance of English Liberal Thought from the Restoration of Charles II until the War with the Thirteen Colonies (Cambridge MA, 1959)
- Lois G. Schwoerer, 'No Standing Armies!' The Antiarmy Ideology in Seventeenth-Century England (Baltimore and London, 1974)
- Lois G. Schwoerer, 'The Literature of the Standing Army Controversy', Huntington Library Quarterly, 28 (1965), 189–212
- Works written by or about John Trenchard at Wikisource
- John Trenchard at the Online Library of Liberty
- Works by or about John Trenchard in libraries (WorldCat catalog)
|Parliament of Great Britain|
| Member of Parliament for Taunton
With: James Smith