Sir Thomas Denton (died 1633) was an English landowner and politician who sat in the House of Commons between 1604 and 1629. Denton was the eldest son of Alexander Denton of Hillesden and his wife Mary Martin, daughter of Sir Roger Martin, Lord Mayor of London. He succeeded his father in 1576. Following his marriage in 1594, he lived at Stowe, Buckinghamshire, and in 1601, he was High Sheriff of the county. He was knighted by the King at Salden, in July 1603. Denton died at Hillesden and was buried there on 23 September 1633.