Thomas Smith (c. 1686–1728), of South Tidworth, Hampshire, was a British landowner and Whig politician who sat in the House of Commons between 1709 and 1728.
He was appointed to office as Clerk of the Council in extraordinary in March 1706, probably due to his father's influence.
In July 1706 he was sent to the Elector of Hanover, with the son of the Earl of Scarbrough, to give their respective fathers' compliments.
He was brought in for Tregony on the Treasury interest at the 1727 election after George II's accession, when he obtained a court office as vice-chamberlain to Queen Caroline 1727.
[1] The Tedworth estate was inherited by Thomas Assheton of Ashley Hall, Cheshire.