Sir Thomas Aston, 4th Baronet (c. 1704–1744), of Aston-by-Sutton, Cheshire, was a British landowner and Whig politician who sat in the House of Commons from 1729 to 1741.
His opponent Thomas Brereton, raised a petition which was finally rejected by the House in April 1730 after protracted hearings.
In the debate on Hessian troops on 3 February 1731, he proposed ‘that the House should address the King to give away his Hanover dominions to anybody that would take them’, but the move was ignored.
On the Address on 16 January 1733, he challenged the statement expressing satisfaction with the situation of the country’s affairs given difficulties to trade caused by Spain and France.
At the 1734 British general election he decided not to stand for Liverpool, and was returned instead for St Albans on the recommendation of Sarah Churchill, Duchess of Marlborough.