Sir Stephen Fox (27 March 1627 – 28 October 1716) of Farley in Wiltshire, of Redlynch Park in Somerset, of Chiswick, Middlesex and of Whitehall, was a royal administrator and courtier to King Charles II, and a politician, who rose from humble origins to become the "richest commoner in the three kingdoms".

Accompanying King Charles II in his flight to the continent, he was appointed manager of the royal household on the recommendation of Edward Hyde, 1st Earl of Clarendon.

Immediately on his Restoration, King Charles II struggled to fund the new standing army, a concept invented by Oliver Cromwell during the Civil War and the following Commonwealth.

His success in restoring the financial position of the army stemmed from his ability to raise credit in the City of London, largely thanks to his reputation for honesty and reliability, which would later be repaid to him by the Treasury, when Parliament so voted.

In 1665 he was knighted; was returned as a Member of Parliament for Westminster on 27 February 1679, and succeeded the Earl of Rochester as a Commissioner of the Treasury, filling that office for twenty-three years and during three reigns.

He was offered a peerage by King James II, on condition of converting to Roman Catholicism, but refused, in spite of which he was allowed to retain his commissionerships.

During the Glorious Revolution, he maintained an attitude of decent reserve, but on James's flight, he submitted to the new King William III, who confirmed him in his offices.

Fox married twice: Fox had the following residences and estates: Of Sir Stephen's garden, this was to be said, that almost all his fine ever-greens were raised in the places where they stood; Sir Stephen taking as much delight to see them rise gradually, and form them into what they were to be, as to buy them of the nursery gardeners, finish' d to his hand; besides that by this method his greens, the finest in England, cost him nothing but the labour of his servants, and about ten years patience; which if they were to have been purchased, would not have cost so little as ten thousand pounds, especially at that time: It was here that King William was so pleased that according to his majesty's usual expression, when he lik'd a place very well, he stood, and looking round him from the head of one of the canals, Well says his majesty, I cou'd dwell here five days; every thing was so exquisitely contrived, finish'd, and well kept, that the king, who was allow'd to be the best judge of such things then living in the world, did not so much as once say, this or that thing cou'd have been better.Fox constructed further buildings including: Fox died on 28 October 1716, aged 89, at his house in Chiswick.